From d83e46135cd1a364e1d68e3c5fb8af8d0c5791d4 Mon Sep 17 00:00:00 2001
From: Mathieu Faverge <mathieu.faverge@inria.fr>
Date: Mon, 29 Aug 2022 16:12:21 +0200
Subject: [PATCH] doc: Add a paragraph about the gemm variants
---
doc/user/chapters/using.org | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/doc/user/chapters/using.org b/doc/user/chapters/using.org
index 721b99ad5..d10423774 100644
--- a/doc/user/chapters/using.org
+++ b/doc/user/chapters/using.org
@@ -914,6 +914,17 @@
int CHAMELEON_Get (CHAMELEON_enum param, int *value);
#+end_src
+ * Alternatively, Chameleon can also be configured through environment variables.
+ * *CHAMELEON_GEMM_ALGO* give the possibility to switch among
+ multiple variants of the GEMM algorithms. These variants are
+ *GENERIC* for the generic variant that should work with any
+ configuration; *SUMMA_C* that works for 2D block cyclic
+ distribution of the matrices A, B, and C with a C stationnary
+ version; *SUMMA_A* and *SUMMA_B* are SUMMA variant of the
+ algorithm that works for any distribution with respectively
+ *A*, or *B that are stationnary. Note that the last two
+ variants are only available with the StarPU runtime backend.
+
**** Auxiliary routines
Reports CHAMELEON version number.
--
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