From a314703e8052aa32be47acca1c3360551175203e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luk=C3=A1=C5=A1=20Krup=C4=8D=C3=ADk?= <lukas.krupcik@vsb.cz>
Date: Mon, 20 Sep 2021 12:54:53 +0200
Subject: [PATCH] Update docs.it4i/software/debuggers/valgrind.md
---
docs.it4i/software/debuggers/valgrind.md | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/docs.it4i/software/debuggers/valgrind.md b/docs.it4i/software/debuggers/valgrind.md
index 32fe64bef..de0c85a57 100644
--- a/docs.it4i/software/debuggers/valgrind.md
+++ b/docs.it4i/software/debuggers/valgrind.md
@@ -48,7 +48,7 @@ int main(void)
Now, compile it with the Intel compiler :
```console
-$ module add intel
+$ ml intel/2020b
$ icc -g valgrind-example.c -o valgrind-example
```
@@ -56,6 +56,10 @@ Now, let us run it with Valgrind:
`valgrind [valgrind options] <your program binary> [your program options]`
+```console
+$ ml Valgrind/3.16.1-intel-2020b
+```
+
If no Valgrind options are specified, Valgrind defaults to running the Memcheck tool. For the full description of command line options, refer to the Valgrind documentation.
```console
@@ -155,10 +159,7 @@ The default version without MPI support will however report a large number of fa
==30166== by 0x4008BD: main (valgrind-example-mpi.c:18)
```
-So it is better to use the MPI-enabled Valgrind from the module. The MPI version requires the library:
-
-* Salomon: $EBROOTVALGRIND/lib/valgrind/libmpiwrap-amd64-linux.so
-
+So it is better to use the MPI-enabled Valgrind from the module. The MPI version requires the library `$EBROOTVALGRIND/lib/valgrind/libmpiwrap-amd64-linux.so`
which must be included in the `LD_PRELOAD` environment variable.
Let us look at this MPI example:
@@ -182,10 +183,9 @@ int main(int argc, char *argv[])
There are two errors - use of uninitialized memory and invalid length of the buffer. Let us debug it with Valgrind:
```console
-$ module add intel impi
+$ ml intel/2020b Valgrind/3.16.1-intel-2020b
$ mpicc -g valgrind-example-mpi.c -o valgrind-example-mpi
-$ module add valgrind/3.9.0-impi
-$ mpirun -np 2 -env LD_PRELOAD /apps/tools/valgrind/3.9.0/impi/lib/valgrind/libmpiwrap-amd64-linux.so valgrind ./valgrind-example-mpi
+$ mpirun -np 2 -env LD_PRELOAD $EBROOTVALGRIND/lib/valgrind/libmpiwrap-amd64-linux.so valgrind ./valgrind-example-mpi
```
Prints this output (note that there is an output printed for every launched MPI process):
--
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