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.

Definition of the environment :

• definition of the environment :

module avail 

module load GCC/7.2.0 

• checking the compiler version

gfortran --version
GNU Fortran (GCC) 7.2.0
Copyright (C) 2017 Free Software Foundation, Inc. 

Compilation :

gfortran -o SommeVecVecSEQ.exe SommeVecVecSEQ.f90 

The binary file (executable) SommeVecVecSEQ.f90.exe has been generated.

./SommeVecVecSEQ.exe

The result is displayed on the screen :

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

We use a submission script 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