diff --git a/CMakeLists.txt b/CMakeLists.txt
index a0d7193ad1ba20a3a81906705cbe0835a4b09837..179faa457c8d379b86fca865faf6984a400cfde1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -474,7 +474,7 @@ else (NOT CHAMELEON_SIMULATION)
     "\n   To use these perfmodels, please set your STARPU_HOME environment variable to ${CMAKE_CURRENT_SOURCE_DIR}/simucore/perfmodels."
     "\n   Finally, you need to set your STARPU_HOSTNAME environment variable to the name of the machine to simulate."
     "\n   For example: STARPU_HOSTNAME=mirage."
-    "\n   Note that only POTRF kernels with block sizes of 320 or 960 (simple and double precision) on mirage machine are available for now."
+    "\n   Note that only POTRF kernels (simple and double precision) on mirage machine (block sizes of 320 or 960) and sirocco (block sizes of 80, 440, 960, 1440, 1920) are available for now."
     "\n   Database of models is subject to change, it should be enrich in a near future.${ColourReset}")
 
     message("-- ${Blue}Add definition CHAMELEON_SIMULATION"
diff --git a/doc/orgmode/chapters/using.org b/doc/orgmode/chapters/using.org
index 25f8cf200c78fe67dee74aad4ee2c0f43f495552..aa222ba94f621151d4253e63b3c0b5fbfb293e73 100644
--- a/doc/orgmode/chapters/using.org
+++ b/doc/orgmode/chapters/using.org
@@ -173,10 +173,22 @@
     set your *STARPU_HOME* environment variable to
     ~path/to/your/chameleon_sources/simucore/perfmodels~.  Finally, you
     need to set your *STARPU_HOSTNAME* environment variable to the name
-    of the machine to simulate.  For example: *STARPU_HOSTNAME=mirage*.
-    Note that only POTRF kernels with block sizes of 320 or 960
-    (simple and double precision) on /mirage/ and /sirocco/ machines are
-    available for now.  Database of models is subject to change.
+    of the machine to simulate.  Note that only *potrf* algorithm,
+    simple and double precisions, on /mirage/ and /sirocco/ machines, with
+    or without gpus, and for the following tile sizes (choose a size *N*
+    multiple of the tile size) are available for now
+    - /mirage/: 320, 960
+    - /sirocco/: 80, 440, 960, 1440, 1920
+
+    Database of models is subject to change.
+
+    #+begin_example
+    export STARPU_HOME=/tmp/chameleon/simucore/perfmodels/
+    export STARPU_HOSTNAME=sirocco
+    ./testing/chameleon_dtesting -o potrf -t 22 -g 2 -n 14400 -b 1440
+    Id;Function;threads;gpus;P;Q;mtxfmt;nb;uplo;n;lda;seedA;time;gflops
+    0;dpotrf;22;2;1;1;0;1440;121;14400;14400;846930886;7.814116e-01;1.273889e+03
+    #+end_example
 
 *** Use out of core support with StarPU
     <<sec:ooc>>