Differences

no way to compare when less than two revisions

This shows you the differences between two versions of the page.

@@ Line 1: / Line 1: @@
+===== VSC-3: Performance Report (Allinea) =====
+==== Synopsis: ====
+''perf-report'' is a lightweight profiling tool that provides basic information about where the computing time is actually spent in a given application. It is developed by Allinea [[http://www.allinea.com/products/allinea-performance-reports]] and very easy to use, i.e. by simply inserting the call to ''perf-report'' prior to the usual execution of the program.
+==== Usage: ====
+For example, analyzing a simple MPI job could be done with the help of the following submit script to [[doku:slurm|SLURM]]
+   #!/bin/bash
+   #
+   #SBATCH -J prflng
+   #SBATCH -N 2
+   #SBATCH -L allinea@vsc
+   #SBATCH --ntasks-per-node=16
+   #SBATCH --ntasks-per-core=1
+   #SBATCH --time=00:10:00
+   module purge
+   module load intel-mpi/5
+   module load allinea/6.0.6_PR
+   perf-report mpirun -np 32 a.out
+This will result in the creation of two summary files in *.txt and *.html format providing an overview of the relative time spent in MPI, I/O, OpenMP etc.
+==== Further Reading: ====
+Explanations, examples, typical cases at [[http://content.allinea.com/downloads/getting-started.pdf]]