From 76e23958f743adc019e132ebb4e264f95e5dcf42 Mon Sep 17 00:00:00 2001
From: Alban Dutilleul <alban.dutilleul@ens-rennes.fr>
Date: Thu, 10 Oct 2024 09:48:21 +0200
Subject: [PATCH 1/5] (build_system): add docker + requirements to facilitate
 build

---
 Dockerfile       | 43 +++++++++++++++++++++++++++++++++++++++++++
 Makefile         | 20 ++++++++++++++++++++
 requirements.txt |  2 ++
 3 files changed, 65 insertions(+)
 create mode 100644 Dockerfile
 create mode 100644 Makefile
 create mode 100644 requirements.txt

diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..c7e3ac7
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,43 @@
+FROM ubuntu:24.04
+LABEL com.polyhedralcc.version="1.0"
+
+ENV TZ=Europe/Paris
+RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
+
+RUN  apt-get update \
+  && apt-get install -y wget make m4 build-essential patch unzip git libgmp3-dev \
+  && rm -rf /var/lib/apt/lists/*
+  
+RUN apt-get update \ 
+    && apt-get install -y gcc g++ g++-multilib gfortran flex bison automake autoconf libtool pkg-config make perl doxygen texinfo texlive-latex-extra wget rsync llvm-14-dev libclang-14-dev \
+  && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /pluto/
+
+# Install Pluto
+RUN git clone https://github.com/bondhugula/pluto \
+  && cd pluto/ \
+  && git submodule init \
+  && git submodule update \
+  && ./autogen.sh \
+  && ./configure --with-clang-prefix=/usr/lib/llvm-14
+RUN cd pluto && make -j$(nproc)
+
+WORKDIR /pocc/
+
+# Install POCC
+RUN wget https://master.dl.sourceforge.net/project/pocc/1.6/release/pocc-1.6.0-alpha-selfcontained.tar.gz?viasf=1 -O pocc-1.6.0-alpha-selfcontained.tar.gz \
+  && tar -xvf pocc-1.6.0-alpha-selfcontained.tar.gz \
+  && cd pocc-1.6.0-alpha \
+  && ./install.sh 
+
+# Export PATH
+ENV PATH="$PATH:/pocc/pocc-1.6.0-alpha/bin"
+ENV PATH="$PATH:/pluto/pluto"
+
+# Install Python3 and pip
+RUN apt-get update \
+  && apt-get install -y python3 python3-pip python3.12-venv \
+  && rm -rf /var/lib/apt/lists/*
+
+ENTRYPOINT ["bash"]
\ No newline at end of file
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..7de60cb
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,20 @@
+# allow overriding the name of the venv directory
+VENV_DIR ?= venv
+
+.PHONY: ${VENV_DIR}/ venv clean
+
+# set up the venv with all dependencies for development
+${VENV_DIR}/: requirements.txt
+	python3 -m venv ${VENV_DIR}
+	. ${VENV_DIR}/bin/activate
+	python3 -m pip --require-virtualenv install -r requirements.txt
+
+# make sure `make venv` always works no matter what $VENV_DIR is
+venv: ${VENV_DIR}/
+
+docker-run:
+	alias pocc-docker=pocc
+	python3 -m pip install -r requirements.txt --break-system-packages
+
+clean:
+	rm -rf ${VENV_DIR}
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..a6a9e81
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1,2 @@
+tqdm
+pandas
\ No newline at end of file
-- 
GitLab


From 2ccd73557c8b1c161557e2d3d43834818ef7e039 Mon Sep 17 00:00:00 2001
From: Alban Dutilleul <alban.dutilleul@ens-rennes.fr>
Date: Thu, 10 Oct 2024 10:23:07 +0200
Subject: [PATCH 2/5] Add GEM5 + fix versions

---
 .gitignore                                   |   4 +-
 Makefile                                     |   6 +-
 config/versions.list                         |  24 ++--
 polybench/utilities/gem5/asm/generic/m5ops.h | 115 +++++++++++++++++++
 polybench/utilities/gem5/m5ops.h             |  95 +++++++++++++++
 polybench/utilities/polybench.c              |  24 ++++
 polybench/utilities/polybench.h              |  13 +++
 7 files changed, 266 insertions(+), 15 deletions(-)
 create mode 100644 polybench/utilities/gem5/asm/generic/m5ops.h
 create mode 100644 polybench/utilities/gem5/m5ops.h

diff --git a/.gitignore b/.gitignore
index 4e107c1..deaf1d1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,4 +8,6 @@ venv
 .srcfilename
 .unroll
 .outfilename
-*.csv
\ No newline at end of file
+*.csv
+*.cloog
+.regtile
\ No newline at end of file
diff --git a/Makefile b/Makefile
index 7de60cb..24d3639 100644
--- a/Makefile
+++ b/Makefile
@@ -13,8 +13,12 @@ ${VENV_DIR}/: requirements.txt
 venv: ${VENV_DIR}/
 
 docker-run:
-	alias pocc-docker=pocc
 	python3 -m pip install -r requirements.txt --break-system-packages
 
+docker-build-binaries-gem5:
+	mkdir -p __build__
+	./shifumi.py --include polybench/utilities/ --sources-conf='config/benchmarks.list' --versions-conf='config/versions.list' \ 
+				  --always-link-with 'polybench/utilities/polybench.c' --build-directory=__build__ 
+
 clean:
 	rm -rf ${VENV_DIR}
\ No newline at end of file
diff --git a/config/versions.list b/config/versions.list
index 8a4fb68..a2ff732 100644
--- a/config/versions.list
+++ b/config/versions.list
@@ -2,20 +2,18 @@ pluto.noopt=polycc
 pluto.maxfuse=polycc --maxfuse
 pluto.tiling.maxfuse=polycc --tile --maxfuse
 pluto.tiling=polycc --tile
-pluto.par=polycc --multipar
-pluto.parallel=polycc --parallel
 pluto.unroll4=polycc --unroll --ufactor 4
 pluto.unroll8=polycc --unroll --ufactor 8
 pluto.unroll16=polycc --unroll --ufactor 16
 pluto.tiling.unroll=polycc --tile --unroll
-pluto.l2tile=polycc --tile --l2tile
-pluto.l2tile.unroll=polycc --tile --l2tile --unroll
-pocc.smartfuse=pocc-docker --pluto-fuse smartfuse --quiet
-pocc.regtiling8=pocc-docker --register-tiling --punroll-size 8 --pragmatizer --quiet
-pocc.regtiling16=pocc-docker --register-tiling --punroll-size 16 --pragmatizer --quiet
-pocc.tiling32=pocc-docker --pluto-tile --pluto-prevector --vectorizer --quiet
-pocc.tiling32.maxfuse=pocc-docker --pluto-tile --pluto-fuse maxfuse --pluto-prevector --vectorizer --quiet
-pocc.unroll8=pocc-docker --punroll --punroll-size 8 --pragmatizer --quiet
-pocc.tiling32.unroll8=pocc-docker --pluto-tile --punroll --punroll-size 8 --pragmatizer --quiet
-pocc.tiling32.regtiling=pocc-docker --pluto-tile --register --pluto-prevector --vectorizer --quiet
-pocc.vectorization=pocc-docker --pluto-prevector --vectorizer --quiet
\ No newline at end of file
+pluto.l2tile=polycc --tile --second-level-tile
+pluto.l2tile.unroll=polycc --tile --second-level-tile --unroll
+pocc.smartfuse=pocc --pluto-fuse smartfuse --quiet
+pocc.regtiling8=pocc --register-tiling --punroll-size 8 --pragmatizer --quiet
+pocc.regtiling16=pocc --register-tiling --punroll-size 16 --pragmatizer --quiet
+pocc.tiling32=pocc --pluto-tile --pluto-prevector --vectorizer --quiet
+pocc.tiling32.maxfuse=pocc --pluto-tile --pluto-fuse maxfuse --pluto-prevector --vectorizer --quiet
+pocc.unroll8=pocc --punroll --punroll-size 8 --pragmatizer --quiet
+pocc.tiling32.unroll8=pocc --pluto-tile --punroll --punroll-size 8 --pragmatizer --quiet
+pocc.tiling32.regtiling=pocc --pluto-tile --register --pluto-prevector --vectorizer --quiet
+pocc.vectorization=pocc --pluto-prevector --vectorizer --quiet
\ No newline at end of file
diff --git a/polybench/utilities/gem5/asm/generic/m5ops.h b/polybench/utilities/gem5/asm/generic/m5ops.h
new file mode 100644
index 0000000..f1fda25
--- /dev/null
+++ b/polybench/utilities/gem5/asm/generic/m5ops.h
@@ -0,0 +1,115 @@
+/*
+ * Copyright (c) 2016 ARM Limited
+ * All rights reserved
+ *
+ * The license below extends only to copyright in the software and shall
+ * not be construed as granting a license to any other intellectual
+ * property including but not limited to intellectual property relating
+ * to a hardware implementation of the functionality of the software
+ * licensed hereunder.  You may use the software subject to the license
+ * terms below provided that you ensure that this notice is replicated
+ * unmodified and in its entirety in all distributions of the software,
+ * modified or unmodified, in source code or in binary form.
+ *
+ * Copyright (c) 2003-2006 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __GEM5_ASM_GENERIC_M5OPS_H__
+#define __GEM5_ASM_GENERIC_M5OPS_H__
+
+#define M5OP_ARM                0x00
+#define M5OP_QUIESCE            0x01
+#define M5OP_QUIESCE_NS         0x02
+#define M5OP_QUIESCE_CYCLE      0x03
+#define M5OP_QUIESCE_TIME       0x04
+#define M5OP_RPNS               0x07
+#define M5OP_WAKE_CPU           0x09
+#define M5OP_DEPRECATED1        0x10 // obsolete ivlb
+#define M5OP_DEPRECATED2        0x11 // obsolete ivle
+#define M5OP_DEPRECATED3        0x20 // deprecated exit function
+#define M5OP_EXIT               0x21
+#define M5OP_FAIL               0x22
+#define M5OP_SUM                0x23 // For testing
+#define M5OP_INIT_PARAM         0x30
+#define M5OP_LOAD_SYMBOL        0x31
+#define M5OP_RESET_STATS        0x40
+#define M5OP_DUMP_STATS         0x41
+#define M5OP_DUMP_RESET_STATS   0x42
+#define M5OP_CHECKPOINT         0x43
+#define M5OP_WRITE_FILE         0x4F
+#define M5OP_READ_FILE          0x50
+#define M5OP_DEBUG_BREAK        0x51
+#define M5OP_SWITCH_CPU         0x52
+#define M5OP_ADD_SYMBOL         0x53
+#define M5OP_PANIC              0x54
+
+#define M5OP_RESERVED1          0x55 // Reserved for user, used to be annotate
+#define M5OP_RESERVED2          0x56 // Reserved for user
+#define M5OP_RESERVED3          0x57 // Reserved for user
+#define M5OP_RESERVED4          0x58 // Reserved for user
+#define M5OP_RESERVED5          0x59 // Reserved for user
+
+#define M5OP_WORK_BEGIN         0x5a
+#define M5OP_WORK_END           0x5b
+
+#define M5OP_DIST_TOGGLE_SYNC   0x62
+
+#define M5OP_WORKLOAD           0x70
+
+
+#define M5OP_FOREACH                                            \
+    M5OP(m5_arm, M5OP_ARM)                                      \
+    M5OP(m5_quiesce, M5OP_QUIESCE)                              \
+    M5OP(m5_quiesce_ns, M5OP_QUIESCE_NS)                        \
+    M5OP(m5_quiesce_cycle, M5OP_QUIESCE_CYCLE)                  \
+    M5OP(m5_quiesce_time, M5OP_QUIESCE_TIME)                    \
+    M5OP(m5_rpns, M5OP_RPNS)                                    \
+    M5OP(m5_wake_cpu, M5OP_WAKE_CPU)                            \
+    M5OP(m5_exit, M5OP_EXIT)                                    \
+    M5OP(m5_fail, M5OP_FAIL)                                    \
+    M5OP(m5_sum, M5OP_SUM)                                      \
+    M5OP(m5_init_param, M5OP_INIT_PARAM)                        \
+    M5OP(m5_load_symbol, M5OP_LOAD_SYMBOL)                      \
+    M5OP(m5_reset_stats, M5OP_RESET_STATS)                      \
+    M5OP(m5_dump_stats, M5OP_DUMP_STATS)                        \
+    M5OP(m5_dump_reset_stats, M5OP_DUMP_RESET_STATS)            \
+    M5OP(m5_checkpoint, M5OP_CHECKPOINT)                        \
+    M5OP(m5_write_file, M5OP_WRITE_FILE)                        \
+    M5OP(m5_read_file, M5OP_READ_FILE)                          \
+    M5OP(m5_debug_break, M5OP_DEBUG_BREAK)                      \
+    M5OP(m5_switch_cpu, M5OP_SWITCH_CPU)                        \
+    M5OP(m5_add_symbol, M5OP_ADD_SYMBOL)                        \
+    M5OP(m5_panic, M5OP_PANIC)                                  \
+    M5OP(m5_work_begin, M5OP_WORK_BEGIN)                        \
+    M5OP(m5_work_end, M5OP_WORK_END)                            \
+    M5OP(m5_dist_toggle_sync, M5OP_DIST_TOGGLE_SYNC)            \
+    M5OP(m5_workload, M5OP_WORKLOAD)                            \
+
+#define M5OP_MERGE_TOKENS_I(a, b) a##b
+#define M5OP_MERGE_TOKENS(a, b) M5OP_MERGE_TOKENS_I(a, b)
+
+#endif //  __GEM5_ASM_GENERIC_M5OPS_H__
\ No newline at end of file
diff --git a/polybench/utilities/gem5/m5ops.h b/polybench/utilities/gem5/m5ops.h
new file mode 100644
index 0000000..47b2453
--- /dev/null
+++ b/polybench/utilities/gem5/m5ops.h
@@ -0,0 +1,95 @@
+/*
+ * Copyright (c) 2003-2006 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __GEM5_M5OP_H__
+#define __GEM5_M5OP_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+
+#include <gem5/asm/generic/m5ops.h>
+
+void m5_arm(uint64_t address);
+void m5_quiesce(void);
+void m5_quiesce_ns(uint64_t ns);
+void m5_quiesce_cycle(uint64_t cycles);
+uint64_t m5_quiesce_time(void);
+uint64_t m5_rpns();
+void m5_wake_cpu(uint64_t cpuid);
+
+void m5_exit(uint64_t ns_delay);
+void m5_fail(uint64_t ns_delay, uint64_t code);
+// m5_sum is for sanity checking the gem5 op interface.
+unsigned m5_sum(unsigned a, unsigned b, unsigned c,
+                unsigned d, unsigned e, unsigned f);
+uint64_t m5_init_param(uint64_t key_str1, uint64_t key_str2);
+void m5_checkpoint(uint64_t ns_delay, uint64_t ns_period);
+void m5_reset_stats(uint64_t ns_delay, uint64_t ns_period);
+void m5_dump_stats(uint64_t ns_delay, uint64_t ns_period);
+void m5_dump_reset_stats(uint64_t ns_delay, uint64_t ns_period);
+uint64_t m5_read_file(void *buffer, uint64_t len, uint64_t offset);
+uint64_t m5_write_file(void *buffer, uint64_t len, uint64_t offset,
+                       const char *filename);
+void m5_debug_break(void);
+void m5_switch_cpu(void);
+void m5_dist_toggle_sync(void);
+void m5_add_symbol(uint64_t addr, const char *symbol);
+void m5_load_symbol();
+void m5_panic(void);
+void m5_work_begin(uint64_t workid, uint64_t threadid);
+void m5_work_end(uint64_t workid, uint64_t threadid);
+
+/*
+ * Send a very generic poke to the workload so it can do something. It's up to
+ * the workload to know what information to look for to interpret an event,
+ * such as what PC it came from, what register values are, or the context of
+ * the workload itself (is this SE mode? which OS is running?).
+ */
+void m5_workload();
+
+/*
+ * Create _addr and _semi versions all declarations, e.g. m5_exit_addr and
+ * m5_exit_semi. These expose the the memory and semihosting variants of the
+ * ops.
+ *
+ * Some of those declarations are not defined for certain ISAs, e.g. X86
+ * does not have _semi, but we felt that ifdefing them out could cause more
+ * trouble tham leaving them in.
+ */
+#define M5OP(name, func) __typeof__(name) M5OP_MERGE_TOKENS(name, _addr); \
+                         __typeof__(name) M5OP_MERGE_TOKENS(name, _semi);
+M5OP_FOREACH
+#undef M5OP
+
+#ifdef __cplusplus
+}
+#endif
+#endif // __GEM5_M5OP_H__
\ No newline at end of file
diff --git a/polybench/utilities/polybench.c b/polybench/utilities/polybench.c
index 5a32c53..9c2d103 100644
--- a/polybench/utilities/polybench.c
+++ b/polybench/utilities/polybench.c
@@ -58,6 +58,10 @@ double polybench_program_total_flops = 0;
 
 #endif
 
+#ifdef POLYBENCH_GEM5
+#include "gem5/m5ops.h"
+#endif
+
 /*
  * Allocation table, to enable inter-array padding. All data allocated
  * with polybench_alloc_data should be freed with polybench_free_data.
@@ -145,6 +149,26 @@ void polybench_linux_standard_scheduler()
 }
 #endif
 
+#ifdef POLYBENCH_GEM5
+
+void polybench_gem5_start()
+{
+  m5_work_begin(0,0);
+}
+
+
+void polybench_gem5_stop()
+{
+  m5_work_end(0,0);
+}
+
+
+void polybench_gem5_print()
+{
+
+}
+#endif
+
 #ifdef POLYBENCH_PAPI
 
 static
diff --git a/polybench/utilities/polybench.h b/polybench/utilities/polybench.h
index 5b62813..2ffbf0f 100644
--- a/polybench/utilities/polybench.h
+++ b/polybench/utilities/polybench.h
@@ -203,6 +203,19 @@ extern int polybench_papi_eventlist[];
 #  define polybench_print_instruments polybench_papi_print();
 # endif
 
+/* GEM5 support. */
+# ifdef POLYBENCH_GEM5
+#  undef polybench_start_instruments
+#  undef polybench_stop_instruments
+#  undef polybench_print_instruments
+#  define polybench_start_instruments polybench_gem5_start();
+#  define polybench_stop_instruments polybench_gem5_stop();
+#  define polybench_print_instruments polybench_gem5_print();
+extern void polybench_gem5_start();
+extern void polybench_gem5_stop();
+extern void polybench_gem5_print();
+# endif
+
 
 /* Timing support. */
 # if defined(POLYBENCH_TIME) || defined(POLYBENCH_GFLOPS)
-- 
GitLab


From ab878016551d776f4fc47ae0d7f7ae445c7358e6 Mon Sep 17 00:00:00 2001
From: Alban Dutilleul <alban.dutilleul@ens-rennes.fr>
Date: Thu, 10 Oct 2024 15:57:08 +0200
Subject: [PATCH 3/5] bunch of changes for arm support + first cleanup

---
 .gitignore                      |   1 +
 Dockerfile                      |  21 +++++++++++++++++++++
 Makefile                        |   8 ++++++--
 config/cc-docker.list           |   9 +++++++++
 config/cc.list                  |   7 ++++++-
 config/versions-docker.list     |  19 +++++++++++++++++++
 gem5_deps/libm5.a               | Bin 0 -> 9666 bytes
 polybench/utilities/polybench.c |  32 ++++++++++++++++++++++++++++++++
 polybench/utilities/polybench.h |   1 -
 9 files changed, 94 insertions(+), 4 deletions(-)
 create mode 100644 config/cc-docker.list
 create mode 100644 config/versions-docker.list
 create mode 100644 gem5_deps/libm5.a

diff --git a/.gitignore b/.gitignore
index deaf1d1..251090b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 __pycache__
 __build__
+__buildgem5__
 __fuzz__
 __results__
 __reports__
diff --git a/Dockerfile b/Dockerfile
index c7e3ac7..2495c3d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -40,4 +40,25 @@ RUN apt-get update \
   && apt-get install -y python3 python3-pip python3.12-venv \
   && rm -rf /var/lib/apt/lists/*
 
+# Install PAPI
+RUN apt-get update \
+  && apt-get install -y libpapi-dev \
+  && rm -rf /var/lib/apt/lists/*
+
+# Install AARCH64 cross compiler
+RUN apt-get update \
+  && apt-get install -y gcc-aarch64-linux-gnu g++-aarch64-linux-gnu \
+  && rm -rf /var/lib/apt/lists/*
+
+# Install CMake
+RUN apt-get update \
+  && apt-get install -y cmake \
+  && rm -rf /var/lib/apt/lists/*
+
+# Install gcc-10-aarch64-linux-gnu-gcc and g++-10-aarch64-linux-gnu
+RUN apt-get update \
+  && apt-get install -y gcc-10-aarch64-linux-gnu g++-10-aarch64-linux-gnu \
+  && rm -rf /var/lib/apt/lists/*
+
+
 ENTRYPOINT ["bash"]
\ No newline at end of file
diff --git a/Makefile b/Makefile
index 24d3639..9957cc9 100644
--- a/Makefile
+++ b/Makefile
@@ -17,8 +17,12 @@ docker-run:
 
 docker-build-binaries-gem5:
 	mkdir -p __build__
-	./shifumi.py --include polybench/utilities/ --sources-conf='config/benchmarks.list' --versions-conf='config/versions.list' \ 
-				  --always-link-with 'polybench/utilities/polybench.c' --build-directory=__build__ 
+	./shifumi.py --include polybench/utilities/ --compilers-conf=config/cc-docker.list --sources-conf='config/benchmarks.list' --versions-conf='config/versions-docker.list' --always-link-with 'polybench/utilities/polybench.c' --build-directory=__build__ --linker-options '-lm -Lgem5_deps -lm5 -Lperfpipedream/build-static -lperf-pipedream'
+
+docker-build-binaries-arm:
+	mkdir -p __build__
+	./shifumi.py --include polybench/utilities/ --compilers-conf=config/cc-docker.list --sources-conf='config/benchmarks.list' --versions-conf='config/versions-docker.list' --always-link-with 'polybench/utilities/polybench.c' --build-directory=__build__ --linker-options '-lm -Lperfpipedream/build-arm-ok -lperf-pipedream'
+
 
 clean:
 	rm -rf ${VENV_DIR}
\ No newline at end of file
diff --git a/config/cc-docker.list b/config/cc-docker.list
new file mode 100644
index 0000000..26d3b61
--- /dev/null
+++ b/config/cc-docker.list
@@ -0,0 +1,9 @@
+#gcc.O3.SSE.SKYLAKE.GEM5=gcc -static -O3 -g -march=x86-64-v2 -mtune=skylake -DPOLYBENCH_GEM5 -DGEM5
+#gcc.O3.SSE.SKYLAKE.PAPI=gcc -O3 -g -march=x86-64-v2 -mtune=skylake -DPOLYBENCH_PAPI -DGEM5
+#aarch64-linux-gnu-gcc.gus=aarch64-linux-gnu-gcc-10 -O3 -g -march=armv8-a -mcpu=cortex-a72 
+aarch64-linux-gnu-gcc.perf=aarch64-linux-gnu-gcc -O3 -g -static -march=armv8-a -mcpu=cortex-a72 -DPOLYBENCH_PIPEDREAM -DPOLYBENCH_PAPI -Iperfpipedream/lib
+aarch64-linux-gnu-gcc.gus=aarch64-linux-gnu-gcc -O3 -g -static -march=armv8-a -mcpu=cortex-a72 -Iperfpipedream/lib
+#gcc.O3.SSE.SKYLAKE.PIPEDREAM=gcc -O3 -g -march=x86-64-v2 -mtune=skylake -DPOLYBENCH_PIPEDREAM -DPOLYBENCH_PAPI  -Iperfpipedream/lib
+# gcc.O3=gcc -w -O1 -g -march=native -fno-inline -falign-functions -falign-jumps -falign-labels -falign-loops -fcaller-saves -fcode-hoisting -fcrossjumping -fcse-follow-jumps -fcse-skip-blocks -fdelete-null-pointer-checks -fdevirtualize -fdevirtualize-speculatively -fexpensive-optimizations -fgcse -fgcse-lm -fhoist-adjacent-loads -fipa-bit-cp -fipa-icf -fipa-ra -fipa-sra -fipa-vrp -fisolate-erroneous-paths-dereference -flra-remat -foptimize-sibling-calls -foptimize-strlen -freorder-blocks-algorithm=stc -freorder-functions -frerun-cse-after-loop -fschedule-insns -fschedule-insns2 -fsched-interblock -fsched-spec -fstore-merging -fstrict-aliasing -fthread-jumps -ftree-builtin-call-dce -ftree-pre -ftree-switch-conversion -ftree-tail-merge -ftree-vrp -fgcse-after-reload -fipa-cp-clone -floop-interchange -floop-unroll-and-jam -fpeel-loops -fpredictive-commoning -fsplit-paths -ftree-loop-distribute-patterns -ftree-loop-distribution -ftree-loop-vectorize -ftree-partial-pre -ftree-slp-vectorize -funswitch-loops -fvect-cost-model -fversion-loops-for-strides
+# clang.O2=clang -w -O2 -g -fno-inline -march=native
+# gcc.O2=gcc -w -O1 -g -march=native -fno-inline -falign-functions -falign-jumps -falign-labels -falign-loops -fcaller-saves -fcode-hoisting -fcrossjumping -fcse-follow-jumps -fcse-skip-blocks -fdelete-null-pointer-checks -fdevirtualize -fdevirtualize-speculatively -fexpensive-optimizations -fgcse -fgcse-lm -fhoist-adjacent-loads -fipa-bit-cp -fipa-icf -fipa-ra -fipa-sra -fipa-vrp -fisolate-erroneous-paths-dereference -flra-remat -foptimize-sibling-calls -foptimize-strlen -freorder-blocks-algorithm=stc -freorder-functions -frerun-cse-after-loop -fschedule-insns -fschedule-insns2 -fsched-interblock -fsched-spec -fstore-merging -fstrict-aliasing -fthread-jumps -ftree-builtin-call-dce -ftree-pre -ftree-switch-conversion -ftree-tail-merge -ftree-vrp
\ No newline at end of file
diff --git a/config/cc.list b/config/cc.list
index fefa110..26d3b61 100644
--- a/config/cc.list
+++ b/config/cc.list
@@ -1,4 +1,9 @@
-clang.O3=clang -w -O3 -g -fno-inline -march=native
+#gcc.O3.SSE.SKYLAKE.GEM5=gcc -static -O3 -g -march=x86-64-v2 -mtune=skylake -DPOLYBENCH_GEM5 -DGEM5
+#gcc.O3.SSE.SKYLAKE.PAPI=gcc -O3 -g -march=x86-64-v2 -mtune=skylake -DPOLYBENCH_PAPI -DGEM5
+#aarch64-linux-gnu-gcc.gus=aarch64-linux-gnu-gcc-10 -O3 -g -march=armv8-a -mcpu=cortex-a72 
+aarch64-linux-gnu-gcc.perf=aarch64-linux-gnu-gcc -O3 -g -static -march=armv8-a -mcpu=cortex-a72 -DPOLYBENCH_PIPEDREAM -DPOLYBENCH_PAPI -Iperfpipedream/lib
+aarch64-linux-gnu-gcc.gus=aarch64-linux-gnu-gcc -O3 -g -static -march=armv8-a -mcpu=cortex-a72 -Iperfpipedream/lib
+#gcc.O3.SSE.SKYLAKE.PIPEDREAM=gcc -O3 -g -march=x86-64-v2 -mtune=skylake -DPOLYBENCH_PIPEDREAM -DPOLYBENCH_PAPI  -Iperfpipedream/lib
 # gcc.O3=gcc -w -O1 -g -march=native -fno-inline -falign-functions -falign-jumps -falign-labels -falign-loops -fcaller-saves -fcode-hoisting -fcrossjumping -fcse-follow-jumps -fcse-skip-blocks -fdelete-null-pointer-checks -fdevirtualize -fdevirtualize-speculatively -fexpensive-optimizations -fgcse -fgcse-lm -fhoist-adjacent-loads -fipa-bit-cp -fipa-icf -fipa-ra -fipa-sra -fipa-vrp -fisolate-erroneous-paths-dereference -flra-remat -foptimize-sibling-calls -foptimize-strlen -freorder-blocks-algorithm=stc -freorder-functions -frerun-cse-after-loop -fschedule-insns -fschedule-insns2 -fsched-interblock -fsched-spec -fstore-merging -fstrict-aliasing -fthread-jumps -ftree-builtin-call-dce -ftree-pre -ftree-switch-conversion -ftree-tail-merge -ftree-vrp -fgcse-after-reload -fipa-cp-clone -floop-interchange -floop-unroll-and-jam -fpeel-loops -fpredictive-commoning -fsplit-paths -ftree-loop-distribute-patterns -ftree-loop-distribution -ftree-loop-vectorize -ftree-partial-pre -ftree-slp-vectorize -funswitch-loops -fvect-cost-model -fversion-loops-for-strides
 # clang.O2=clang -w -O2 -g -fno-inline -march=native
 # gcc.O2=gcc -w -O1 -g -march=native -fno-inline -falign-functions -falign-jumps -falign-labels -falign-loops -fcaller-saves -fcode-hoisting -fcrossjumping -fcse-follow-jumps -fcse-skip-blocks -fdelete-null-pointer-checks -fdevirtualize -fdevirtualize-speculatively -fexpensive-optimizations -fgcse -fgcse-lm -fhoist-adjacent-loads -fipa-bit-cp -fipa-icf -fipa-ra -fipa-sra -fipa-vrp -fisolate-erroneous-paths-dereference -flra-remat -foptimize-sibling-calls -foptimize-strlen -freorder-blocks-algorithm=stc -freorder-functions -frerun-cse-after-loop -fschedule-insns -fschedule-insns2 -fsched-interblock -fsched-spec -fstore-merging -fstrict-aliasing -fthread-jumps -ftree-builtin-call-dce -ftree-pre -ftree-switch-conversion -ftree-tail-merge -ftree-vrp
\ No newline at end of file
diff --git a/config/versions-docker.list b/config/versions-docker.list
new file mode 100644
index 0000000..a2ff732
--- /dev/null
+++ b/config/versions-docker.list
@@ -0,0 +1,19 @@
+pluto.noopt=polycc
+pluto.maxfuse=polycc --maxfuse
+pluto.tiling.maxfuse=polycc --tile --maxfuse
+pluto.tiling=polycc --tile
+pluto.unroll4=polycc --unroll --ufactor 4
+pluto.unroll8=polycc --unroll --ufactor 8
+pluto.unroll16=polycc --unroll --ufactor 16
+pluto.tiling.unroll=polycc --tile --unroll
+pluto.l2tile=polycc --tile --second-level-tile
+pluto.l2tile.unroll=polycc --tile --second-level-tile --unroll
+pocc.smartfuse=pocc --pluto-fuse smartfuse --quiet
+pocc.regtiling8=pocc --register-tiling --punroll-size 8 --pragmatizer --quiet
+pocc.regtiling16=pocc --register-tiling --punroll-size 16 --pragmatizer --quiet
+pocc.tiling32=pocc --pluto-tile --pluto-prevector --vectorizer --quiet
+pocc.tiling32.maxfuse=pocc --pluto-tile --pluto-fuse maxfuse --pluto-prevector --vectorizer --quiet
+pocc.unroll8=pocc --punroll --punroll-size 8 --pragmatizer --quiet
+pocc.tiling32.unroll8=pocc --pluto-tile --punroll --punroll-size 8 --pragmatizer --quiet
+pocc.tiling32.regtiling=pocc --pluto-tile --register --pluto-prevector --vectorizer --quiet
+pocc.vectorization=pocc --pluto-prevector --vectorizer --quiet
\ No newline at end of file
diff --git a/gem5_deps/libm5.a b/gem5_deps/libm5.a
new file mode 100644
index 0000000000000000000000000000000000000000..a9fdfdc566e5e0182c17dc7cb06b087957c4c73d
GIT binary patch
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diff --git a/polybench/utilities/polybench.c b/polybench/utilities/polybench.c
index 9c2d103..2ff265a 100644
--- a/polybench/utilities/polybench.c
+++ b/polybench/utilities/polybench.c
@@ -31,6 +31,7 @@
 # include "polybench.h"
 #endif
 
+
 /* By default, collect PAPI counters on thread 0. */
 #ifndef POLYBENCH_THREAD_MONITOR
 # define POLYBENCH_THREAD_MONITOR 0
@@ -62,6 +63,37 @@ double polybench_program_total_flops = 0;
 #include "gem5/m5ops.h"
 #endif
 
+#ifdef POLYBENCH_PIPEDREAM
+# include <perf-pipedream.h>
+# define POLYBENCH_PAPI
+# define PAPI_strerror perf_pipedream_strerror
+# define PAPI_query_event perf_pipedream_query_event
+# define PAPI_library_init perf_pipedream_library_init
+# define PAPI_is_initialized perf_pipedream_is_initialized
+# define PAPI_event_name_to_code perf_pipedream_event_name_to_code
+# define PAPI_create_eventset perf_pipedream_create_eventset
+# define PAPI_add_event perf_pipedream_add_event
+# define PAPI_remove_event perf_pipedream_remove_event
+# define PAPI_start perf_pipedream_start
+# define PAPI_read perf_pipedream_read
+# define PAPI_stop perf_pipedream_stop
+# define PAPI_cleanup_eventset perf_pipedream_cleanup_eventset
+# define PAPI_destroy_eventset perf_pipedream_destroy_eventset
+# define PAPI_shutdown perf_pipedream_shutdown
+# define PAPI_get_event_info perf_pipedream_get_event_info
+# define PAPI_event_code_to_name perf_pipedream_event_code_to_name
+
+static int perf_pipedream_event_code_to_name(int EventCode, char *out) {
+  return PAPI_OK;
+}
+
+static int perf_pipedream_get_event_info(int code, void *ev) {
+  return PAPI_OK;
+}
+#define PAPI_VER_CURRENT PERFPIPEDREAM_CURRENT_VERSION
+
+#endif
+
 /*
  * Allocation table, to enable inter-array padding. All data allocated
  * with polybench_alloc_data should be freed with polybench_free_data.
diff --git a/polybench/utilities/polybench.h b/polybench/utilities/polybench.h
index 2ffbf0f..2316df0 100644
--- a/polybench/utilities/polybench.h
+++ b/polybench/utilities/polybench.h
@@ -216,7 +216,6 @@ extern void polybench_gem5_stop();
 extern void polybench_gem5_print();
 # endif
 
-
 /* Timing support. */
 # if defined(POLYBENCH_TIME) || defined(POLYBENCH_GFLOPS)
 #  undef polybench_start_instruments
-- 
GitLab


From f6d07902ce5b295fed2a900b207507a3fa073941 Mon Sep 17 00:00:00 2001
From: Alban Dutilleul <alban.dutilleul@ens-rennes.fr>
Date: Thu, 10 Oct 2024 15:59:36 +0200
Subject: [PATCH 4/5] reduce diff

---
 config/cc.list       |  7 +------
 config/versions.list | 24 +++++++++++++-----------
 2 files changed, 14 insertions(+), 17 deletions(-)

diff --git a/config/cc.list b/config/cc.list
index 26d3b61..fefa110 100644
--- a/config/cc.list
+++ b/config/cc.list
@@ -1,9 +1,4 @@
-#gcc.O3.SSE.SKYLAKE.GEM5=gcc -static -O3 -g -march=x86-64-v2 -mtune=skylake -DPOLYBENCH_GEM5 -DGEM5
-#gcc.O3.SSE.SKYLAKE.PAPI=gcc -O3 -g -march=x86-64-v2 -mtune=skylake -DPOLYBENCH_PAPI -DGEM5
-#aarch64-linux-gnu-gcc.gus=aarch64-linux-gnu-gcc-10 -O3 -g -march=armv8-a -mcpu=cortex-a72 
-aarch64-linux-gnu-gcc.perf=aarch64-linux-gnu-gcc -O3 -g -static -march=armv8-a -mcpu=cortex-a72 -DPOLYBENCH_PIPEDREAM -DPOLYBENCH_PAPI -Iperfpipedream/lib
-aarch64-linux-gnu-gcc.gus=aarch64-linux-gnu-gcc -O3 -g -static -march=armv8-a -mcpu=cortex-a72 -Iperfpipedream/lib
-#gcc.O3.SSE.SKYLAKE.PIPEDREAM=gcc -O3 -g -march=x86-64-v2 -mtune=skylake -DPOLYBENCH_PIPEDREAM -DPOLYBENCH_PAPI  -Iperfpipedream/lib
+clang.O3=clang -w -O3 -g -fno-inline -march=native
 # gcc.O3=gcc -w -O1 -g -march=native -fno-inline -falign-functions -falign-jumps -falign-labels -falign-loops -fcaller-saves -fcode-hoisting -fcrossjumping -fcse-follow-jumps -fcse-skip-blocks -fdelete-null-pointer-checks -fdevirtualize -fdevirtualize-speculatively -fexpensive-optimizations -fgcse -fgcse-lm -fhoist-adjacent-loads -fipa-bit-cp -fipa-icf -fipa-ra -fipa-sra -fipa-vrp -fisolate-erroneous-paths-dereference -flra-remat -foptimize-sibling-calls -foptimize-strlen -freorder-blocks-algorithm=stc -freorder-functions -frerun-cse-after-loop -fschedule-insns -fschedule-insns2 -fsched-interblock -fsched-spec -fstore-merging -fstrict-aliasing -fthread-jumps -ftree-builtin-call-dce -ftree-pre -ftree-switch-conversion -ftree-tail-merge -ftree-vrp -fgcse-after-reload -fipa-cp-clone -floop-interchange -floop-unroll-and-jam -fpeel-loops -fpredictive-commoning -fsplit-paths -ftree-loop-distribute-patterns -ftree-loop-distribution -ftree-loop-vectorize -ftree-partial-pre -ftree-slp-vectorize -funswitch-loops -fvect-cost-model -fversion-loops-for-strides
 # clang.O2=clang -w -O2 -g -fno-inline -march=native
 # gcc.O2=gcc -w -O1 -g -march=native -fno-inline -falign-functions -falign-jumps -falign-labels -falign-loops -fcaller-saves -fcode-hoisting -fcrossjumping -fcse-follow-jumps -fcse-skip-blocks -fdelete-null-pointer-checks -fdevirtualize -fdevirtualize-speculatively -fexpensive-optimizations -fgcse -fgcse-lm -fhoist-adjacent-loads -fipa-bit-cp -fipa-icf -fipa-ra -fipa-sra -fipa-vrp -fisolate-erroneous-paths-dereference -flra-remat -foptimize-sibling-calls -foptimize-strlen -freorder-blocks-algorithm=stc -freorder-functions -frerun-cse-after-loop -fschedule-insns -fschedule-insns2 -fsched-interblock -fsched-spec -fstore-merging -fstrict-aliasing -fthread-jumps -ftree-builtin-call-dce -ftree-pre -ftree-switch-conversion -ftree-tail-merge -ftree-vrp
\ No newline at end of file
diff --git a/config/versions.list b/config/versions.list
index a2ff732..8a4fb68 100644
--- a/config/versions.list
+++ b/config/versions.list
@@ -2,18 +2,20 @@ pluto.noopt=polycc
 pluto.maxfuse=polycc --maxfuse
 pluto.tiling.maxfuse=polycc --tile --maxfuse
 pluto.tiling=polycc --tile
+pluto.par=polycc --multipar
+pluto.parallel=polycc --parallel
 pluto.unroll4=polycc --unroll --ufactor 4
 pluto.unroll8=polycc --unroll --ufactor 8
 pluto.unroll16=polycc --unroll --ufactor 16
 pluto.tiling.unroll=polycc --tile --unroll
-pluto.l2tile=polycc --tile --second-level-tile
-pluto.l2tile.unroll=polycc --tile --second-level-tile --unroll
-pocc.smartfuse=pocc --pluto-fuse smartfuse --quiet
-pocc.regtiling8=pocc --register-tiling --punroll-size 8 --pragmatizer --quiet
-pocc.regtiling16=pocc --register-tiling --punroll-size 16 --pragmatizer --quiet
-pocc.tiling32=pocc --pluto-tile --pluto-prevector --vectorizer --quiet
-pocc.tiling32.maxfuse=pocc --pluto-tile --pluto-fuse maxfuse --pluto-prevector --vectorizer --quiet
-pocc.unroll8=pocc --punroll --punroll-size 8 --pragmatizer --quiet
-pocc.tiling32.unroll8=pocc --pluto-tile --punroll --punroll-size 8 --pragmatizer --quiet
-pocc.tiling32.regtiling=pocc --pluto-tile --register --pluto-prevector --vectorizer --quiet
-pocc.vectorization=pocc --pluto-prevector --vectorizer --quiet
\ No newline at end of file
+pluto.l2tile=polycc --tile --l2tile
+pluto.l2tile.unroll=polycc --tile --l2tile --unroll
+pocc.smartfuse=pocc-docker --pluto-fuse smartfuse --quiet
+pocc.regtiling8=pocc-docker --register-tiling --punroll-size 8 --pragmatizer --quiet
+pocc.regtiling16=pocc-docker --register-tiling --punroll-size 16 --pragmatizer --quiet
+pocc.tiling32=pocc-docker --pluto-tile --pluto-prevector --vectorizer --quiet
+pocc.tiling32.maxfuse=pocc-docker --pluto-tile --pluto-fuse maxfuse --pluto-prevector --vectorizer --quiet
+pocc.unroll8=pocc-docker --punroll --punroll-size 8 --pragmatizer --quiet
+pocc.tiling32.unroll8=pocc-docker --pluto-tile --punroll --punroll-size 8 --pragmatizer --quiet
+pocc.tiling32.regtiling=pocc-docker --pluto-tile --register --pluto-prevector --vectorizer --quiet
+pocc.vectorization=pocc-docker --pluto-prevector --vectorizer --quiet
\ No newline at end of file
-- 
GitLab


From 51876c60e8ecc487b57fc875ce5073645907f308 Mon Sep 17 00:00:00 2001
From: Alban Dutilleul <alban.dutilleul@ens-rennes.fr>
Date: Thu, 10 Oct 2024 16:02:13 +0200
Subject: [PATCH 5/5] add perfpipedream directly because of fix

---
 perfpipedream/.gitignore                      |   8 +
 perfpipedream/CMakeLists.txt                  |  20 +
 perfpipedream/LICENSE                         | 674 ++++++++++++++++++
 perfpipedream/README.md                       |  27 +
 .../examples/perf-pipedream-example.c         | 177 +++++
 perfpipedream/lib/perf-pipedream.c            | 473 ++++++++++++
 perfpipedream/lib/perf-pipedream.h            |  36 +
 7 files changed, 1415 insertions(+)
 create mode 100644 perfpipedream/.gitignore
 create mode 100644 perfpipedream/CMakeLists.txt
 create mode 100644 perfpipedream/LICENSE
 create mode 100644 perfpipedream/README.md
 create mode 100644 perfpipedream/examples/perf-pipedream-example.c
 create mode 100644 perfpipedream/lib/perf-pipedream.c
 create mode 100644 perfpipedream/lib/perf-pipedream.h

diff --git a/perfpipedream/.gitignore b/perfpipedream/.gitignore
new file mode 100644
index 0000000..830f15f
--- /dev/null
+++ b/perfpipedream/.gitignore
@@ -0,0 +1,8 @@
+CMakeCache.txt
+CMakeFiles
+cmake_install.cmake
+*.so
+*.a
+Makefile
+perf-pipedream-example
+install_manifest.txt
diff --git a/perfpipedream/CMakeLists.txt b/perfpipedream/CMakeLists.txt
new file mode 100644
index 0000000..68bdc25
--- /dev/null
+++ b/perfpipedream/CMakeLists.txt
@@ -0,0 +1,20 @@
+cmake_minimum_required(VERSION 3.15.1)
+
+project(perf-pipedream)
+set(CMAKE_C_FLAGS "-Wall -Wextra -Werror -g")
+
+add_library(perf-pipedream STATIC
+    lib/perf-pipedream.c
+)
+
+install(TARGETS perf-pipedream DESTINATION lib)
+install(FILES lib/perf-pipedream.h DESTINATION include)
+
+
+project(perf-pipedream-example)
+set(CMAKE_C_FLAGS "-Wall -Wextra -Werror -g")
+
+add_executable(perf-pipedream-example
+    examples/perf-pipedream-example.c)
+target_include_directories(perf-pipedream-example PRIVATE lib)
+target_link_libraries(perf-pipedream-example PUBLIC perf-pipedream -static)
diff --git a/perfpipedream/LICENSE b/perfpipedream/LICENSE
new file mode 100644
index 0000000..f288702
--- /dev/null
+++ b/perfpipedream/LICENSE
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
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+
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diff --git a/perfpipedream/README.md b/perfpipedream/README.md
new file mode 100644
index 0000000..753fa93
--- /dev/null
+++ b/perfpipedream/README.md
@@ -0,0 +1,27 @@
+Perf-Pipedream
+==============
+Linux' perf event, but with a PAPI-like interface.
+
+# Author
+- Nicolas Derumigny <nicolas.derumigny@inria.fr>
+
+# Usage
+Same as PAPI, but functions are instead prefixed by `perf_pipedream_`.
+
+# Requirements
+- CMake 3.14+
+- Perf
+
+# Installation
+```sh
+mkdir -p build
+cd build
+cmake ..
+sudo make install
+```
+
+Note that
+```sh
+export LD_LIBRARY_PATH=/usr/local/lib
+```
+may be necessary to allow execution of programs using Perf-Pipedream.
diff --git a/perfpipedream/examples/perf-pipedream-example.c b/perfpipedream/examples/perf-pipedream-example.c
new file mode 100644
index 0000000..3806cd3
--- /dev/null
+++ b/perfpipedream/examples/perf-pipedream-example.c
@@ -0,0 +1,177 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "perf-pipedream.h"
+
+static void handle(int ret) {
+    if (ret != PERFPIPEDREAM_SUCCESS) {
+        fprintf(stderr, "Error: %s\n", perf_pipedream_strerror(ret));
+        exit(EXIT_FAILURE);
+    }
+}
+
+static void init() {
+    int ret = perf_pipedream_library_init(PERFPIPEDREAM_CURRENT_VERSION);
+    if (ret < 0)
+        handle(ret);
+    if (ret != PERFPIPEDREAM_CURRENT_VERSION) {
+        fprintf(stderr, "Error: bad version %d, expeted %d\n", ret, PERFPIPEDREAM_CURRENT_VERSION);
+        exit(EXIT_FAILURE);
+    }
+}
+
+static void create(int *events_ptr) {
+    *events_ptr = PERFPIPEDREAM_NULL;
+    int ret = perf_pipedream_create_eventset(events_ptr);
+    handle(ret);
+}
+
+static void cleanup(int events) {
+    int ret = perf_pipedream_cleanup_eventset(events);
+    handle(ret);
+}
+
+static void destroy(int *events_ptr) {
+    int ret = perf_pipedream_destroy_eventset(events_ptr);
+    handle(ret);
+}
+
+static void shutdown() {
+    perf_pipedream_shutdown();
+}
+
+static void add_event(int events, int event_code) {
+    int ret = perf_pipedream_add_event(events, event_code);
+    handle(ret);
+}
+
+static void remove_event(int events, int event_code) {
+    int ret = perf_pipedream_remove_event(events, event_code);
+    handle(ret);
+}
+
+static int event_name_code(const char *event_name) {
+    int event_code;
+    int ret = perf_pipedream_event_name_to_code(event_name, &event_code);
+    handle(ret);
+    return event_code;
+}
+
+static void add_event_name(int events, const char *event_name) {
+    int event_code = event_name_code(event_name);
+    add_event(events, event_code);
+}
+
+static void start(int events) {
+    int ret = perf_pipedream_start(events);
+    handle(ret);
+}
+
+static void stop(int events, long long int values[]) {
+    int ret = perf_pipedream_stop(events, values);
+    handle(ret);
+}
+
+static void read(int events, long long int values[]) {
+    int ret = perf_pipedream_read(events, values);
+    handle(ret);
+}
+
+
+#define PRINTF(...) do { printf(__VA_ARGS__); fflush(stdout); } while(0)
+#define MAX_SIZE 100000
+
+int main() {
+
+    int events;
+
+    init();
+    create(&events);
+
+    add_event_name(events, "PAPI_TOT_CYC");
+    int event_code_ins = event_name_code("PAPI_TOT_INS");
+    int event_code_cyc = event_name_code("PAPI_TOT_CYC");
+
+    int *A = malloc(MAX_SIZE * sizeof(*A));
+    int *B = malloc(MAX_SIZE * sizeof(*B));
+
+    A[0] = 4;
+    B[0] = 8;
+    for (int i = 1; i < MAX_SIZE; ++i) {
+        A[i] = (A[i - 1] * 42) % 405;
+        B[i] = (A[i] * 56) % 308;
+    }
+
+    long long values[2];
+    long long num_reps = 1000;
+    int num_execs = 5;
+    for (int e = 0; e < num_execs; ++e) {
+        long long num_its, num_rounds;
+        if (num_reps > MAX_SIZE) {
+            num_its = MAX_SIZE;
+            num_rounds = num_reps / MAX_SIZE;
+        } else {
+            num_its = num_reps;
+            num_rounds = 1;
+        }
+        add_event(events, event_code_ins);
+        start(events);
+
+        PRINTF("Running: %lld...\n", num_rounds * num_its);
+        for (long long r = 0; r < num_rounds; r++) {
+            for (long long i = 0; i < num_its; ++i) {
+                B[i] = A[i] * B[i];
+            }
+        }
+
+        // Test stop and read
+        if (e % 2) {
+            stop(events, values);
+        } else {
+            read(events, values);
+            stop(events, NULL);
+        }
+
+        remove_event(events, event_code_ins);
+
+        // Test shutdown/restart and cleanup/add
+        if (e == 0) {
+            shutdown();
+            init();
+            create(&events);
+            add_event_name(events, "PAPI_TOT_CYC");
+        } else if (e == 1) {
+            cleanup(events);
+            add_event_name(events, "PAPI_TOT_CYC");
+        } else if (e == 2) {
+            destroy(&events);
+            create(&events);
+            add_event_name(events, "PAPI_TOT_CYC");
+        } else if (e == 3) {
+	    remove_event(events, event_code_cyc);
+	    cleanup(events);
+            add_event(events, event_code_cyc);
+        }
+
+        // Avoid DCE
+        *((volatile int *)&B[rand()*(MAX_SIZE-1)/RAND_MAX]);
+
+        PRINTF("Num reps:   %lld\n"
+               "Num cycles: %lld\n"
+               "Num instrs: %lld\n"
+               "IPC:        %f\n",
+               num_its * num_rounds, values[0], values[1], ((float)values[1]) / values[0]);
+        num_reps *= 10;
+        if (e < num_execs - 1)
+            PRINTF("\n");
+    }
+
+    free(A);
+    free(B);
+
+    cleanup(events);
+    destroy(&events);
+
+    perf_pipedream_shutdown();
+    return 0;
+}
diff --git a/perfpipedream/lib/perf-pipedream.c b/perfpipedream/lib/perf-pipedream.c
new file mode 100644
index 0000000..3d8d473
--- /dev/null
+++ b/perfpipedream/lib/perf-pipedream.c
@@ -0,0 +1,473 @@
+#include <asm/unistd.h>
+#include <limits.h>
+#include <linux/perf_event.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <alloca.h>
+#include <unistd.h>
+
+#include "perf-pipedream.h"
+
+#define EVENTSET_FREE ((void *)-1ull)
+
+#ifdef __GNUC__
+#define UNFREQUENT(exp) __builtin_expect((exp), 0)
+#else
+#define UNFREQUENT(exp) (exp)
+#endif
+
+#define VERBOSE(level, ...) (void)({			\
+        if (UNFREQUENT(level)) {                        \
+            fprintf(stderr, "DEBUG: perf_pipedream: "); \
+            fprintf(stderr, __VA_ARGS__);               \
+            fprintf(stderr, "\n");                      \
+        }                                               \
+	0;						\
+    })
+
+#define MAY_TRAP(trap, retcode) ({                                      \
+            if (UNFREQUENT(trap) && retcode != PERFPIPEDREAM_SUCCESS) { \
+                fprintf(stderr, "TRAP: perf_pipedream: unexpected error (%d): %s\n", retcode, perf_pipedream_strerror(retcode)); \
+                abort();                                                \
+            }                                                           \
+            retcode;                                                    \
+        })
+
+#define SPRINT_LIST(buffer, buffer_size, n_elts, elts) sprint_int_list(buffer, buffer_size, n_elts, sizeof(*elts), (void *)elts)
+
+static char *sprint_int_list(char *buffer, int buffer_size, int n_elts, int elt_size, void *elts) {
+    int n = 0;
+    const char *sep = "";
+    buffer[0] = '\0';
+    for (int e = 0; e < n_elts; e++) {
+        int r;
+        long long int value = 0;
+        if (elt_size == sizeof(int))
+            value = ((int *)elts)[e];
+        else if (elt_size == sizeof(long int))
+            value = ((long int *)elts)[e];
+        else if (elt_size == sizeof(long long int))
+            value = ((long long int *)elts)[e];
+        r = snprintf(buffer + n, buffer_size - n, "%s%lld", sep, value);
+        if (r >= buffer_size - n) break;
+        n += r;
+        sep = ", ";
+    }
+    return buffer;
+}
+
+const char *PERFPIPEDREAM_EVENTS_NAME[] = {
+    "PERFPIPEDREAM_NO_EVENT",
+    "PAPI_TOT_CYC",
+    "PAPI_TOT_INS",
+};
+
+const int PERFPIPEDREAM_NUM_EVENTS = 3;
+
+typedef struct {
+    int fd;
+} s_perf_event_config_t;
+
+struct perf_event_attr **RUNNING_PE = NULL;
+s_perf_event_config_t **RUNNING_PE_CONFIG = NULL;
+int NUM_RUNNING_PE = 0;
+
+// Array of array of events or `EVENTSET_FREE`
+int **ALL_EVENT_SET = NULL;
+// Number of events for each event set
+int *NUM_PE = NULL;
+// Total maximal number of event set
+int NUM_EVENT_SET = 0;
+
+int DEBUG = 0;
+int TRAP = 0;
+int IS_INIT = 0;
+int RUNNING = 0;
+
+static int event_idx_to_config(int idx, __u64 *config) {
+    switch (idx) {
+        // 0 is reserved as an end marker of the event list
+    case 1: // PAPI_TOT_CYCLE
+        *config = PERF_COUNT_HW_CPU_CYCLES;
+        return PERFPIPEDREAM_SUCCESS;
+    case 2: // PAPI_TOT_INS
+        *config = PERF_COUNT_HW_INSTRUCTIONS;
+        return PERFPIPEDREAM_SUCCESS;
+    default:
+        *config = 0;
+        return PERFPIPEDREAM_ENO_EVENT_IDX;
+    }
+}
+
+int perf_pipedream_query_event(int event_code) {
+    if (event_code < PERFPIPEDREAM_NUM_EVENTS)
+        return PERFPIPEDREAM_SUCCESS;
+    else
+        return PERFPIPEDREAM_ENO_EVENT_IDX;  // Do not trap, it can be used as a query
+}
+
+const char *perf_pipedream_strerror(int errcode) {
+    switch (errcode) {
+    case PERFPIPEDREAM_SUCCESS:
+        return ("Operation completed successfully");
+    case PERFPIPEDREAM_EEVENT_NOTFOUND:
+        return ("Event name not found");
+    case PERFPIPEDREAM_ENO_EVENT_IDX:
+        return ("Event set has an unknown event");
+    case PERFPIPEDREAM_EPERF_OPEN:
+        return ("Error occured during perf_event_open syscall");
+    case PERFPIPEDREAM_EEVENT_ALREADY_EXISTS:
+        return ("Event already exist in event set");
+    case PERFPIPEDREAM_EALREADY_RUNNING:
+        return ("One event capture set is already running, more are unsupported");
+    case PERFPIPEDREAM_ENOT_RUNNING:
+        return ("Event capture is not running");
+    case PERFPIPEDREAM_EEVENTSET_NOTFOUND:
+        return ("Event set not found");
+    case PERFPIPEDREAM_EEVENTSET_NONEMPTY:
+        return ("Event set is not empty");
+    case PERFPIPEDREAM_EEVENTSET_NOTNULL:
+        return ("Event set is not PERFPIPEDREAM_NULL");
+    case PERFPIPEDREAM_EALREADY_INIT:
+        return ("Library already initialized");
+    case PERFPIPEDREAM_EINVALID_VERSION:
+        return ("Invalid version selected");
+    case PERFPIPEDREAM_EEVENT_NOT_IN_SET:
+        return ("Event is not present in event set");
+    case PERFPIPEDREAM_EEVENT_SET_RUNNING:
+        return ("Event set is currently running");
+    case PERFPIPEDREAM_EEVENTSET_NULL:
+        return ("Event set is not initialized");
+    default:
+        return ("Unknown error. Something *real bad* happened here");
+    }
+}
+
+static long perf_event_open(struct perf_event_attr *hw_event, pid_t pid, int cpu,
+                            int group_fd, unsigned long flags) {
+    int ret;
+
+    ret = syscall(__NR_perf_event_open, hw_event, pid, cpu, group_fd, flags);
+    return ret;
+}
+
+int perf_pipedream_library_init(int version) {
+    DEBUG = getenv("PERF_PIPEDREAM_DEBUG") != NULL;
+    TRAP = getenv("PERF_PIPEDREAM_TRAP") != NULL;
+    VERBOSE(DEBUG, "perf_pipedream_library_init(%d)", version);
+    if (version != PERFPIPEDREAM_CURRENT_VERSION)
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EINVALID_VERSION);
+
+    if (IS_INIT == 1)
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EALREADY_INIT);
+
+    IS_INIT = 1;
+    return PERFPIPEDREAM_CURRENT_VERSION;
+}
+
+void perf_pipedream_shutdown() {
+    VERBOSE(DEBUG, "perf_pipedream_shutdown()");
+    if (RUNNING) {
+        perf_pipedream_stop(RUNNING, NULL);
+    }
+    for (int i = 0; i < NUM_EVENT_SET; ++i) {
+        if (ALL_EVENT_SET[i] != EVENTSET_FREE) {
+            free(ALL_EVENT_SET[i]);
+            ALL_EVENT_SET[i] = EVENTSET_FREE;
+        }
+    }
+    free(ALL_EVENT_SET);
+    ALL_EVENT_SET = NULL;
+    free(NUM_PE);
+    NUM_PE = NULL;
+    NUM_EVENT_SET = 0;
+    IS_INIT = 0;
+}
+
+int perf_pipedream_is_initialized() {
+    VERBOSE(DEBUG, "perf_pipedream_is_initialized()");
+    return IS_INIT;
+}
+
+int perf_pipedream_event_name_to_code(const char *event_name, int *event_code) {
+    VERBOSE(DEBUG, "perf_pipedream_event_name_to_code(%s, %p)", event_name, event_code);
+    for (int i = 0; i < PERFPIPEDREAM_NUM_EVENTS; ++i) {
+        if (!strcmp(event_name, PERFPIPEDREAM_EVENTS_NAME[i])) {
+            *event_code = i;
+            goto success;
+        }
+    }
+    return PERFPIPEDREAM_EEVENT_NOTFOUND; // Do not trap, it can be used as a query
+ success:
+    VERBOSE(DEBUG, "perf_pipedream_event_name_to_code(%s, %p) => event_code: %d", event_name, event_code, *event_code);
+    return PERFPIPEDREAM_SUCCESS;
+}
+
+int perf_pipedream_create_eventset(int *event_set) {
+    VERBOSE(DEBUG, "perf_pipedream_create_event_set(%p): initial: %d", event_set, *event_set);
+    if (UNFREQUENT(*event_set != PERFPIPEDREAM_NULL))
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EEVENTSET_NOTNULL);
+
+    for (int i = 0; i < NUM_EVENT_SET; ++i) {
+        if (ALL_EVENT_SET[i] == EVENTSET_FREE) {
+            ALL_EVENT_SET[i] = NULL;
+            NUM_PE[i] = 0;
+            *event_set = i + 1;
+            goto success;
+        }
+    }
+    NUM_EVENT_SET++;
+    *event_set = NUM_EVENT_SET;
+    ALL_EVENT_SET = realloc(ALL_EVENT_SET, sizeof(*ALL_EVENT_SET) * NUM_EVENT_SET);
+    NUM_PE = realloc(NUM_PE, sizeof(*NUM_PE) * NUM_EVENT_SET);
+    ALL_EVENT_SET[NUM_EVENT_SET - 1] = NULL;
+    NUM_PE[NUM_EVENT_SET - 1] = 0;
+
+ success:
+    VERBOSE(DEBUG, "perf_pipedream_create_event_set(%p) => event_set: %d", event_set, *event_set);
+    return PERFPIPEDREAM_SUCCESS;
+}
+
+int perf_pipedream_add_event(int event_set, int event_idx) {
+    VERBOSE(DEBUG, "perf_pipedream_add_event(%d, %d)", event_set, event_idx);
+    if (UNFREQUENT(event_set == PERFPIPEDREAM_NULL))
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EEVENTSET_NULL);
+    if (UNFREQUENT(RUNNING == event_set))
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EEVENT_SET_RUNNING);
+    event_set--;
+    if (UNFREQUENT(event_set < 0) ||
+	UNFREQUENT(event_set >= NUM_EVENT_SET) ||
+	UNFREQUENT(ALL_EVENT_SET[event_set] == EVENTSET_FREE))
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EEVENTSET_NOTFOUND);
+
+    for (int i = 0; i < NUM_PE[event_set]; ++i)
+        if (ALL_EVENT_SET[event_set][i] == event_idx)
+            return MAY_TRAP(TRAP, PERFPIPEDREAM_EEVENT_ALREADY_EXISTS);
+    NUM_PE[event_set]++;
+    ALL_EVENT_SET[event_set] = realloc(
+                                       ALL_EVENT_SET[event_set],
+                                       sizeof(*ALL_EVENT_SET[event_set]) * NUM_PE[event_set]);
+    ALL_EVENT_SET[event_set][NUM_PE[event_set] - 1] = event_idx;
+    if (UNFREQUENT(DEBUG)) {
+        const char *buffer = SPRINT_LIST(alloca(sizeof(char)*4096),
+                                         4096,
+                                         NUM_PE[event_set],
+                                         ALL_EVENT_SET[event_set]);
+        VERBOSE(DEBUG, "perf_pipedream_add_event(%d, %d) => events: {%s}", event_set + 1, event_idx, buffer);
+    }
+    return PERFPIPEDREAM_SUCCESS;
+}
+
+int perf_pipedream_remove_event(int event_set, int event_idx) {
+    VERBOSE(DEBUG, "perf_pipedream_remove_event(%d, %d)", event_set, event_idx);
+    if (UNFREQUENT(event_set == PERFPIPEDREAM_NULL))
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EEVENTSET_NULL);
+    if (UNFREQUENT(RUNNING == event_set))
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EEVENT_SET_RUNNING);
+    event_set--;
+    if (UNFREQUENT(event_set < 0) ||
+	UNFREQUENT(event_set >= NUM_EVENT_SET) ||
+	UNFREQUENT(ALL_EVENT_SET[event_set] == EVENTSET_FREE))
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EEVENTSET_NOTFOUND);
+
+    int found = 0;
+    for (int i = 0; i < NUM_PE[event_set]; ++i) {
+        if (ALL_EVENT_SET[event_set][i] == event_idx) {
+            NUM_PE[event_set]--;
+            found = 1;
+        }
+        if (found && i < NUM_PE[event_set])
+            ALL_EVENT_SET[event_set][i] = ALL_EVENT_SET[event_set][i + 1];
+    }
+    if (!found)
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EEVENT_NOT_IN_SET);
+
+    if (NUM_PE[event_set] == 0) {
+      free(ALL_EVENT_SET[event_set]);
+      ALL_EVENT_SET[event_set] = NULL;
+    }
+
+    if (UNFREQUENT(DEBUG)) {
+        const char *buffer = SPRINT_LIST(alloca(sizeof(char)*4096),
+                                         4096,
+                                         NUM_PE[event_set],
+                                         ALL_EVENT_SET[event_set]);
+        VERBOSE(DEBUG, "perf_pipedream_remove_event(%d, %d) => events: {%s}", event_set + 1, event_idx, buffer);
+    }
+    return PERFPIPEDREAM_SUCCESS;
+}
+
+int perf_pipedream_start(int event_set) {
+    VERBOSE(DEBUG, "perf_pipedream_start(%d)", event_set);
+    if (UNFREQUENT(event_set == PERFPIPEDREAM_NULL))
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EEVENTSET_NULL);
+    event_set--;
+    if (UNFREQUENT(event_set < 0) ||
+	UNFREQUENT(event_set >= NUM_EVENT_SET) ||
+	UNFREQUENT(ALL_EVENT_SET[event_set] == EVENTSET_FREE))
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EEVENTSET_NOTFOUND);
+    if (UNFREQUENT(RUNNING))
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EALREADY_RUNNING);
+
+    RUNNING = event_set + 1;
+    NUM_RUNNING_PE = 0;
+
+    int *events = ALL_EVENT_SET[event_set];
+    int num_events = NUM_PE[event_set];
+    for (int i = 0; i < num_events; ++i) {
+        {
+            int event_idx = events[i];
+            __u64 config;
+            int errcode = event_idx_to_config(event_idx, &config);
+            if (errcode != PERFPIPEDREAM_SUCCESS)
+                return MAY_TRAP(TRAP, errcode);
+            NUM_RUNNING_PE++;
+            RUNNING_PE = (struct perf_event_attr **)realloc(
+                                                            RUNNING_PE, sizeof(struct perf_event_attr *) * NUM_RUNNING_PE);
+            struct perf_event_attr *pe = malloc(sizeof(*pe));
+            RUNNING_PE[NUM_RUNNING_PE - 1] = pe;
+
+            memset(pe, 0, sizeof(*pe));
+            pe->type = PERF_TYPE_HARDWARE;
+            pe->size = sizeof(*pe);
+            pe->disabled = 1;
+            pe->exclude_kernel = 1;
+            pe->exclude_hv = 1;
+            pe->config = config;
+
+            RUNNING_PE_CONFIG = (s_perf_event_config_t **)realloc(
+                                                                  RUNNING_PE_CONFIG, sizeof(s_perf_event_config_t *) * NUM_RUNNING_PE);
+            RUNNING_PE_CONFIG[NUM_RUNNING_PE - 1] = malloc(sizeof(s_perf_event_config_t));
+            s_perf_event_config_t *pe_config = RUNNING_PE_CONFIG[NUM_RUNNING_PE - 1];
+            pe_config->fd = perf_event_open(pe, 0, -1, -1, 0);
+            if (pe_config->fd == -1)
+                return MAY_TRAP(TRAP, PERFPIPEDREAM_EPERF_OPEN);
+        }
+    }
+    for (int i = 0; i < NUM_RUNNING_PE; ++i)
+        ioctl(RUNNING_PE_CONFIG[i]->fd, PERF_EVENT_IOC_RESET, 0);
+
+    for (int i = 0; i < NUM_RUNNING_PE; ++i)
+        ioctl(RUNNING_PE_CONFIG[i]->fd, PERF_EVENT_IOC_ENABLE, 0);
+
+    if (UNFREQUENT(DEBUG)) {
+        int *fds = alloca(sizeof(int)*NUM_RUNNING_PE);
+        for (int i = 0; i < NUM_RUNNING_PE; ++i)
+            fds[i] = RUNNING_PE_CONFIG[i]->fd;
+        const char *buffer = SPRINT_LIST(alloca(sizeof(char)*4096),
+                                         4096,
+                                         NUM_RUNNING_PE,
+                                         fds);
+        VERBOSE(DEBUG, "perf_pipedream_start(%d) => fds: {%s}", event_set + 1, buffer);
+    }
+    return PERFPIPEDREAM_SUCCESS;
+}
+
+int perf_pipedream_stop(int event_set, long_long res[]) {
+    VERBOSE(DEBUG, "perf_pipedream_stop(%d, %p)", event_set, res);
+    if (UNFREQUENT(event_set == PERFPIPEDREAM_NULL))
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EEVENTSET_NULL);
+    event_set--;
+    if (UNFREQUENT(event_set < 0) ||
+	UNFREQUENT(event_set >= NUM_EVENT_SET) ||
+	UNFREQUENT(ALL_EVENT_SET[event_set] == EVENTSET_FREE))
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EEVENTSET_NOTFOUND);
+    if (UNFREQUENT(RUNNING != event_set + 1))
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_ENOT_RUNNING);
+
+    if (res != NULL) {
+        for (int i = 0; i < NUM_RUNNING_PE; ++i) {
+            read(RUNNING_PE_CONFIG[i]->fd, res + i, sizeof(*res));
+        }
+        if (UNFREQUENT(DEBUG)) {
+            const char *buffer = SPRINT_LIST(alloca(sizeof(char)*4096),
+                                             4096,
+                                             NUM_RUNNING_PE,
+                                             res);
+            VERBOSE(DEBUG, "perf_pipedream_stop(%d, %p): results: {%s}", event_set + 1, res, buffer);
+        }
+    }
+
+    for (int i = 0; i < NUM_RUNNING_PE; ++i) {
+        ioctl(RUNNING_PE_CONFIG[i]->fd, PERF_EVENT_IOC_DISABLE, 0);
+        close(RUNNING_PE_CONFIG[i]->fd);
+        free(RUNNING_PE_CONFIG[i]);
+        free(RUNNING_PE[i]);
+    }
+
+    free(RUNNING_PE);
+    RUNNING_PE = NULL;
+    free(RUNNING_PE_CONFIG);
+    RUNNING_PE_CONFIG = NULL;
+    NUM_RUNNING_PE = 0;
+    RUNNING = 0;
+
+    return PERFPIPEDREAM_SUCCESS;
+}
+
+int perf_pipedream_read(int event_set, long_long res[]) {
+    VERBOSE(DEBUG, "perf_pipedream_read(%d, %p)", event_set, res);
+    if (UNFREQUENT(event_set == PERFPIPEDREAM_NULL))
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EEVENTSET_NULL);
+    event_set--;
+    if (UNFREQUENT(event_set < 0) ||
+	UNFREQUENT(event_set >= NUM_EVENT_SET) ||
+	UNFREQUENT(ALL_EVENT_SET[event_set] == EVENTSET_FREE))
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EEVENTSET_NOTFOUND);
+    if (UNFREQUENT(RUNNING != event_set + 1))
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_ENOT_RUNNING);
+
+    if (res != NULL) {
+        for (int i = 0; i < NUM_RUNNING_PE; ++i) {
+            read(RUNNING_PE_CONFIG[i]->fd, res + i, sizeof(*res));
+        }
+        if (UNFREQUENT(DEBUG)) {
+            const char *buffer = SPRINT_LIST(alloca(sizeof(char)*4096),
+                                             4096,
+                                             NUM_RUNNING_PE,
+                                             res);
+            VERBOSE(DEBUG, "perf_pipedream_read(%d, %p): results: {%s}", event_set + 1, res, buffer);
+        }
+    }
+
+    return PERFPIPEDREAM_SUCCESS;
+}
+
+int perf_pipedream_cleanup_eventset(int event_set) {
+    VERBOSE(DEBUG, "perf_pipedream_cleanup_event_set(%d)", event_set);
+    if (UNFREQUENT(event_set == PERFPIPEDREAM_NULL))
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EEVENTSET_NULL);
+    if (UNFREQUENT(RUNNING == event_set))
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EEVENT_SET_RUNNING);
+    event_set--;
+    if (UNFREQUENT(event_set < 0) ||
+	UNFREQUENT(event_set >= NUM_EVENT_SET) ||
+	UNFREQUENT(ALL_EVENT_SET[event_set] == EVENTSET_FREE))
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EEVENTSET_NOTFOUND);
+    free(ALL_EVENT_SET[event_set]);
+    ALL_EVENT_SET[event_set] = NULL;
+    NUM_PE[event_set] = 0;
+    return PERFPIPEDREAM_SUCCESS;
+}
+
+int perf_pipedream_destroy_eventset(int *event_set) {
+    VERBOSE(DEBUG, "perf_pipedream_destroy_event_set(%p): value: %d", event_set, *event_set);
+    if (UNFREQUENT(*event_set == PERFPIPEDREAM_NULL))
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EEVENTSET_NULL);
+    if (UNFREQUENT(RUNNING == *event_set))
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EEVENT_SET_RUNNING);
+    *event_set = *event_set - 1;
+    if (UNFREQUENT(*event_set < 0) ||
+	UNFREQUENT(*event_set >= NUM_EVENT_SET) ||
+	UNFREQUENT(ALL_EVENT_SET[*event_set] == EVENTSET_FREE)) {
+        *event_set = *event_set + 1;
+        return MAY_TRAP(TRAP, PERFPIPEDREAM_EEVENTSET_NOTFOUND);
+    }
+    if (ALL_EVENT_SET[*event_set] != NULL)
+        perf_pipedream_cleanup_eventset(*event_set + 1);
+    ALL_EVENT_SET[*event_set] = EVENTSET_FREE;
+    *event_set = PERFPIPEDREAM_NULL;
+    return PERFPIPEDREAM_SUCCESS;
+}
diff --git a/perfpipedream/lib/perf-pipedream.h b/perfpipedream/lib/perf-pipedream.h
new file mode 100644
index 0000000..1329eb5
--- /dev/null
+++ b/perfpipedream/lib/perf-pipedream.h
@@ -0,0 +1,36 @@
+#define PERFPIPEDREAM_CURRENT_VERSION (1)
+
+#define PERFPIPEDREAM_SUCCESS (0)
+#define PERFPIPEDREAM_EEVENT_NOTFOUND (-1)
+#define PERFPIPEDREAM_ENO_EVENT_IDX (-2)
+#define PERFPIPEDREAM_EPERF_OPEN (-3)
+#define PERFPIPEDREAM_EEVENT_ALREADY_EXISTS (-4)
+#define PERFPIPEDREAM_EALREADY_RUNNING (-5)
+#define PERFPIPEDREAM_ENOT_RUNNING (-6)
+#define PERFPIPEDREAM_EEVENTSET_NOTFOUND (-7)
+#define PERFPIPEDREAM_EEVENTSET_NONEMPTY (-8)
+#define PERFPIPEDREAM_EEVENTSET_NOTNULL (-9)
+#define PERFPIPEDREAM_EALREADY_INIT (-10)
+#define PERFPIPEDREAM_EINVALID_VERSION (-11)
+#define PERFPIPEDREAM_EEVENT_NOT_IN_SET (-12)
+#define PERFPIPEDREAM_EEVENT_SET_RUNNING (-13)
+#define PERFPIPEDREAM_EEVENTSET_NULL (-14)
+
+#define PERFPIPEDREAM_NULL (-1)
+
+#define long_long long long
+
+const char *perf_pipedream_strerror(int errcode);
+int perf_pipedream_query_event(int event_code);
+int perf_pipedream_library_init(int version);
+int perf_pipedream_is_initialized();
+int perf_pipedream_event_name_to_code(const char *event_name, int *event_code);
+int perf_pipedream_create_eventset(int *event_set);
+int perf_pipedream_add_event(int event_set, int event_idx);
+int perf_pipedream_remove_event(int event_set, int event_idx);
+int perf_pipedream_start(int event_set);
+int perf_pipedream_read(int event_set, long long res[]);
+int perf_pipedream_stop(int event_set, long long res[]);
+int perf_pipedream_cleanup_eventset(int event_set);
+int perf_pipedream_destroy_eventset(int *event_set);
+void perf_pipedream_shutdown();
-- 
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