Hi Andreas, Thanks a lot for your example! Btw your blog is beneficial for me as well :-) Best Regards, Fan On Fri, Mar 13, 2015 at 3:02 PM, Andreas Schäfer <[email protected]> wrote:
Hi,
If the names of your hosts differ in length, then you'll need to use MPI_Get_processor_name + MPI_Allgather + MPI_Allgatherv, for a quick example please see the attached code.
Cheers -Andreas
On 22:46 Thu 12 Mar , Jeff Hammond wrote:
Try MPI_Allgather on the output of MPI_Get_processor_name.
Jeff
On Thu, Mar 12, 2015 at 10:41 PM, YANG Fan <[email protected]> wrote:
Thanks, Jeff!
But there's one problem. Suppose I'm on rank 1 and I want to know the host name of rank 2, then using this function I can only know my own host name. I hope that I can know others' host names...
On Fri, Mar 13, 2015 at 11:15 AM, Jeff Hammond <[email protected]
wrote:
Try MPI_Get_processor_name.
Jeff
On Thursday, March 12, 2015, YANG Fan <[email protected]> wrote:
Hi,
To run an MPI program on a cluster I need to pass the host file as a parameter. However, how can I know that what host name does a
specific rank
correspond to? Or how can I access the host file inside my MPI program? Thanks!
Best Regards, Fan
-- Jeff Hammond [email protected] http://jeffhammond.github.io/
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-- Jeff Hammond [email protected] http://jeffhammond.github.io/ _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss
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