Hello Troy, This issue is fairly common and has to do with the maximum amount of memory allowed to be allocated. See this FAQ for more detail: http://www.open-mpi.org/faq/?category=openfabrics#ib-locked-pages
I had the same issue and the FAQ resolves it. Good luck, Alex. On 2/8/07, Troy Telford <ttelford.gro...@gmail.com> wrote:
I've got a system that is running Open MPI 1.1.2, SLES 10, with the OFED 1.0 drivers. The code runs over Gigabit Ethernet/TCP without issues on Open MPI... The code does some memory allocation, communication, etc - the developer wrote it to stress the network fabric, and can be submitted if necessary. The job is being run on four nodes (two dual-core CPUs each, 16 cores total), with DDR IB. Non-MPI bandwidth tests don't seem to be having issues; but that doesn't necessarily mean things work great over MPI. The error is (upon job start), something to the extent of (transcribed from phone): mca_mpool_openib_register: cannot allocate memory . . . Error creating low priority CQ for MTHCA0: Cannot allocate memory. What has to happen for this message to get thrown? (I've seen IB fabric instability with OpenIB before, and I don't recall this being one of the errors I've seen). Also, is there any chance that the error can be caused by mismatched libraries (from a different compile of Open MPI?) (And I apologize for firing off this without knowing more; I'm still gathering data as I learn more...) -- Troy Telford _______________________________________________ users mailing list us...@open-mpi.org http://www.open-mpi.org/mailman/listinfo.cgi/users
