From b63439e7f3b0b58570573d7c6ef89b92e57d6840 Mon Sep 17 00:00:00 2001
From: Matthieu Kuhn <matthieu.kuhn@atos.net>
Date: Thu, 20 Apr 2023 18:06:04 +0200
Subject: [PATCH] header: Add a CHAM_ipiv_t data structure to manage the
pivoting data structure in GETRF
---
include/chameleon/struct.h | 21 ++++++++++++++++++++-
1 file changed, 20 insertions(+), 1 deletion(-)
diff --git a/include/chameleon/struct.h b/include/chameleon/struct.h
index efa64a1c5..d7dd07f48 100644
--- a/include/chameleon/struct.h
+++ b/include/chameleon/struct.h
@@ -19,7 +19,7 @@
* @author Samuel Thibault
* @author Matthieu Kuhn
* @author Lionel Eyraud-Dubois
- * @date 2023-07-05
+ * @date 2023-08-22
*
*/
#ifndef _chameleon_struct_h_
@@ -137,6 +137,25 @@ struct chameleon_desc_s {
void *schedopt; // scheduler (QUARK|StarPU) specific structure
};
+/**
+ * CHAMELEON structure to hold pivot informations for the LU factorization with partial pivoting
+ */
+typedef struct chameleon_piv_s {
+ const CHAM_desc_t *desc; /**> Reference descriptor to compute data mapping based on diagonal tiles,
+ and get floating reference type */
+ int *data; /**> Pointer to the data */
+ void *ipiv; /**> Opaque array of pointers for the runtimes to handle the ipiv array */
+ void *nextpiv; /**> Opaque array of pointers for the runtimes to handle the pivot computation structure */
+ void *prevpiv; /**> Opaque array of pointers for the runtimes to handle the pivot computation structure */
+ int64_t mpitag_ipiv; /**> Initial mpi tag values for the ipiv handles */
+ int64_t mpitag_nextpiv; /**> Initial mpi tag values for the nextpiv handles */
+ int64_t mpitag_prevpiv; /**> Initial mpi tag values for the prevpiv handles */
+ int i; /**> row index to the beginning of the submatrix */
+ int m; /**> The number of row in the vector ipiv */
+ int mb; /**> The number of row per block */
+ int mt; /**> The number of tiles */
+ int n; /**> The number of column considered (must be updated for each panel) */
+} CHAM_ipiv_t;
/**
* CHAMELEON request uniquely identifies each asynchronous function call.
--
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