why nwchem 6.0 crashes in parallel run


Gets Around
Hi,
It's been a very annoying problem here. I'm using an old binary version of Nwchem-6.0.

But how can I run it in parallel ?

I have tried:
mpirun --map-by node -np 2 /home/user/nwchem-6.0-binary-redhat-5-5-gcc-4-1-2/bin/nwchem test_file.nw


But this gives a strange error. The job starts like:
$ mpirun --map-by node -np 2 /home/user/nwchem-6.0-binary-redhat-5-5-gcc-4-1-2/bin/nwchem new_file.nw 
/home/user/nwchem-6.0-binary-redhat-5-5-gcc-4-1-2/bin/nwchem, len=60
new_file.nw, len=11
/home/user/nwchem-6.0-binary-redhat-5-5-gcc-4-1-2/bin/nwchem, len=60
new_file.nw, len=11
 argument  1 = new_file.nw
 argument  1 = new_file.nw

As it appears the same job is running twice not in parallel. After sometime it crashes.

Is it possible to run it in parallel ?

Can you please help me out here. I'm really stuck to make it working.


thank you

Forum Vet
wrong mpirun
You are using a mpirun that is not compatible with the MPI library that was used to compile NWChem. This is clear from the replication of lines in the output file.

PS NWChem 6.0 is rather obsolete

Gets Around
Thanks you


Forum >> NWChem's corner >> Compiling NWChem