Compilation and execution of a program (Fortran)

inlinetoc

The program SommeVecVecSEQ.f90] makes the sum of the two vectors A and B. The result is put in C. ==== Compilation of a program :==== **Definition of the environment** : * definition of the environment : <code bash> module avail </code> <code bash> module load GCC/7.2.0 </code> * checking the compiler version <code> gfortran --version GNU Fortran (GCC) 7.2.0 Copyright (C) 2017 Free Software Foundation, Inc. </code> **Compilation** : <code> gfortran -o SommeVecVecSEQ.exe SommeVecVecSEQ.f90 </code> The binary file (executable) ''SommeVecVecSEQ.f90.exe'' has been generated. ====Exécution du programme :==== === Running on the build server : === <code> ./SommeVecVecSEQ.exe </code> The result is displayed on the screen : <code> Les deux vecteurs : A = 1 2 3 4 5 6 7 8 9 10 B = 9 8 7 6 5 4 3 2 1 0 Le vecteur somme : C = 10 10 10 10 10 10 10 10 10 10 </code> === Running on the cluster : === We use a submission script [[http://www.ens-lyon.fr/PSMN/doku.php?id=en:documentation:tutorials:submit:jobsequentielbash|batch.sh] to submit the job on compute clusters.

It is the submission script that configures the environment and then calls your binary (with its options, if any) on the execution node.

SGE → batch.csh → binaire

qsub batch.csh
Your job 335982 ("SommeVecVecSEQ") has been submitted
qstat

job-ID  prior   name             user         state submit/start at     queue                  slots ja-task-ID 
-----------------------------------------------------------------------------------------------------------------
 335982 0.00000 SommeVecVecSEQ   ccalugar     qw    02/14/2018 10:37:46

qstat

job-ID  prior   name             user         state submit/start at     queue                  slots ja-task-ID 
-----------------------------------------------------------------------------------------------------------------
 335982 0.07300 SommeVecVecSEQ   ccalugar     r    02/14/2018 10:38:54  E5_test@c8220node145         1 

• The output of the screen (standard output) is redirected to the file SommeVecVecSEQ.o335982
• The error output (standard error) is redirected to the file SommeVecVecSEQ.e335982

cat SommeVecVecSEQ.o335982

Les deux vecteurs :
A =            1           2           3           4           5           6           7           8           9          10
B =            9           8           7           6           5           4           3           2           1           0
Le vecteur somme :
C =           10          10          10          10          10          10          10          10          10          10