Fixups in the SMPI tutorial

- We need python3 on the image for smpirun
- Don't try to compile a c++ file with smpicc. smpicxx is a better guess here.

Thanks to the CI for pointing these issues out.

diff --git a/docs/source/Tutorial_MPI_Applications.rst b/docs/source/Tutorial_MPI_Applications.rst
index 192d40d..355464a 100644 (file)
--- a/docs/source/Tutorial_MPI_Applications.rst
+++ b/docs/source/Tutorial_MPI_Applications.rst
@@ -499,7 +499,7 @@ intensive and take time, while being regular enough not to ruin
 simulation accuracy. Furthermore there should not be any MPI calls
 inside such parts of the code.
 
 simulation accuracy. Furthermore there should not be any MPI calls
 inside such parts of the code.
 

-Use for this part the `gemm_mpi.c
+Use for this part the `gemm_mpi.cpp

 <https://gitlab.com/PRACE-4IP/CodeVault/raw/master/hpc_kernel_samples/dense_linear_algebra/gemm/mpi/src/gemm_mpi.cpp>`_
 example, which is provided by the `PRACE Codevault repository
 <http://www.prace-ri.eu/prace-codevault/>`_.
 <https://gitlab.com/PRACE-4IP/CodeVault/raw/master/hpc_kernel_samples/dense_linear_algebra/gemm/mpi/src/gemm_mpi.cpp>`_
 example, which is provided by the `PRACE Codevault repository
 <http://www.prace-ri.eu/prace-codevault/>`_.


@@ -507,12 +507,12 @@ example, which is provided by the `PRACE Codevault repository
 The computing part of this example is the matrix multiplication routine
 
 .. literalinclude:: /tuto_smpi/gemm_mpi.cpp
 The computing part of this example is the matrix multiplication routine
 
 .. literalinclude:: /tuto_smpi/gemm_mpi.cpp

-   :language: c
+   :language: cpp

    :lines: 4-19
 
 .. code-block:: shell
 
    :lines: 4-19
 
 .. code-block:: shell
 

-  $ smpicc -O3 gemm_mpi.cpp -o gemm
+  $ smpicxx -O3 gemm_mpi.cpp -o gemm

   $ time smpirun -np 16 -platform cluster_crossbar.xml -hostfile cluster_hostfile --cfg=smpi/display-timing:yes --cfg=smpi/running-power:1000000000 ./gemm
 
 This should end quite quickly, as the size of each matrix is only 1000x1000. 
   $ time smpirun -np 16 -platform cluster_crossbar.xml -hostfile cluster_hostfile --cfg=smpi/display-timing:yes --cfg=smpi/running-power:1000000000 ./gemm
 
 This should end quite quickly, as the size of each matrix is only 1000x1000.