Some of the PACE clusters partially or fully utilize infiniband (IB) fabric as a faster interconnection network. To use infiniband, codes need to be compiled and launched by one of the MVAPICH stacks we provide. MPICH and MPICH2 stacks do not use infiniband. PACE currently supports several MVAPICH versions for gnu, intel and pgi compilers. Note that MVAPICH requires several changes in the PBS script file to enable 'rsh', therefore the example script given in the Job Submission page cannot be used as it is.
The PBS script samples list includes three sample scripts prepared for gnu, intel and pgi compilers. Please use one of these samples as a template and modify accordingly.