Hello programming colleagues,
I used the -Mconcur on a hybrid code as I do not want to spend all my time adding Open MP in obvious loops. However the XT4 nodes are a cut down Linux and do not have all the system libraries, they prefer static binaries.
When I attempt to run the code all 32 MPI tasks fail with:
./src_32/xtgmh.exe: error while loading shared libraries: libnuma.so.1: cannot open shared object file: No such file
or directory
Note that the code does work in hybrid mode (i.e. 32 MPI + 4 OMP processes). I have read in the PGI 9.0.4 manual that a libnuma stub should be used. How do I force that (the exec is compiled on a login node that is a more complete version of SuSE Linux and allows shared libs)?
The link line is (has been):
ftn -Minfo -Mneginfo=concur -Mextend -byteswapio -r8 -Minline -fast -Mconcur -o xtgmh.exe prog.o
BTW the -Mneginfo is also not behaving as advertised :
pgf90-Error-Switch -Mneginfo with unknown keyword concur
-Mneginfo[=all|accel|ftn|hpf|inline|ipa|loop|lre|mp|opt|par|pfo|vect]
Generate informational messages about optimizations
all -Mneginfo=accel,inline,ipa,loop,lre,mp,opt,par,vect
accel Enable Accelerator information
ftn Enable Fortran-specific information
hpf Enable HPF-specific information
inline Enable inliner information
ipa Enable IPA information
loop Enable loop optimization information
lre Enable LRE information
mp Enable OpenMP information
opt Enable optimizer information
par Enable parallelizer information
pfo Enable profile feedback information
vect Enable vectorizer information
Thanks for your continued support :)
Dr. Skids