How to define the optimum value of ARMCI DEFAULT SHMMAX?


Click here for full thread
Clicked A Few Times
Hi,

I compiled the nwchem-6.0 with Intel 11.x compilers, OpenMPI/1.4.2 and OPENIB flag to use it on the Infiniband em64t cluster. I found the script 'getmem.newchem' in nwchem-6.0/contrib subdirecotry, which was handy to define the preprocessor memory-related directive "-DDFLT_TOT_MEM=value".

However, neither installation nor users' guide has information on how to define the optimum value of ARMCI_DEFAULT_SHMMAX, which must be specified in run-time. Can somebody instruct me how to define the optimum value for ARMCI_DEFAULT_SHMAX ?

Regards,

Ivan Rostov
ANU Supercomputer Facility
Leonard Huxley Bldg #56
The Australian National University
Canberra ACT 0200 Australia