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Old 02-27-2015, 02:31 PM   #1
ron7000
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Intel MPI library question


looking at getting Intel parallel studio xe 2015.
there is 3 editions, composer, professional, and cluster.
only cluster has the intel mpi library according to this:
https://software.intel.com/en-us/int...llel-studio-xe

question is,
i run some software that gives me parallelization options specifically MPI types = pcmpi, intel, openmpi.

if i chose intel, then do i need the "intel mpi library"?
is intel mpi only provided by intel, available only in parallel studio cluster edition?
the other thing is clustered computing or distributed memory on a cluster, versus shared memory on a local machine.
for shared memory on a local machine, is intel mpi still relevant and better/faster than any of the other mpi types?

disregarding complex computer setups, let's say i have just a basic workstation that has 2 intel cpu's each having 6 cores. I want to write code that runs across all cores and all memory on that one motherboard,
do i need intel mpi? should i write it to use intel mpi? is the cost of intel parallel studio cluster edition worth the cost which gives me intel mpi library?
 
Old 02-27-2015, 03:19 PM   #2
SoftSprocket
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It would seem to me, yes, if you choose intel then you are choosing their implementation. Openmpi is free and available for Linux.
 
  


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