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==== PGI Accelerator ====

Some quick notes for our trial environment. PGI compilers comes with it's own MPI flavor, Java JRE and Cuda (4.2 and 4.5).  These compilers can compile straight C/C++ and Fortran code.  But they can also compile that code for parallel invocation using MPI and GPU enable the code stack.

  * [[http://www.pgroup.com/resources/cuda-x86.htm]]
  * [[http://www.drdobbs.com/parallel/easy-gpu-parallelism-with-openacc/240001776?pgno=1]] Article
  * [[http://www.pgroup.com/doc/openACC_gs.pdf]] Getting Started Guide

<code>

# users should set
export PGI=/share/apps/pgi/2013-137
export PATH=$PGI/linux86-64/13.7/bin:$PATH

# optional
export MANPATH=$PGI/linux86-64/13.7/man:$MANPATH
# embedded MPICH1 flavor 
export PATH=$PGI/linux86-64/13.7/mpi/mpich/bin:$PATH

# to start lmgrd (done by root)
export LM_LICENSE_FILE=$PGI/license.dat

# main components
pgf77 -V x.f
pgf95 -V x.f
pghpf -V x.f
pgCC <96>V x.c
pgCC -V x.c
pgcc -V x.c

# hello world compilation
[root@greentail mpihello]# pgf77 -o mpihello mpihello.f -Mmpi
NOTE: your trial license will expire in 14 days, 12.8 hours.

[root@greentail mpihello]# ls -l mpihello
-rwxr-xr-x 1 root root 867322 Aug 22 11:13 mpihello

[root@greentail mpihello]# mpirun -np 4 mpihello
 Hello world!  I'm node           0
 Hello world!  I'm node           1
 Hello world!  I'm node           3
 Hello world!  I'm node           2

# may have useful information
/share/apps/pgi/2013-137/INSTALL.txt

</code>


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