Fatal error in MPI_Recv: Invalid tag

Oriol_C_ — Thu, 24 Apr 2014 10:34:59 GMT

Hello,

I was developing a new software using scaLAPACK/BLACS MKL implementation. In my small testing cluster everything worked ok. However, when I have moved to the 'big' cluster to start computations, the program sometimes fails with error (repeated for different threads):

Rank 38 [Thu Apr 17 16:08:18 2014] [c7-1c1s8n3] Fatal error in MPI_Recv: Invalid tag, error stack:
MPI_Recv(192): MPI_Recv(buf=0x3847640, count=64, MPI_INT, src=37, tag=5000000, comm=0x84000004, status=0x7fffffff7418) failed
MPI_Recv(113): Invalid tag, value is 5000000

I am using the compiler and libraries in Intel Composer XE Edition 2013 SP1. The cluster is based on Cray XC30 series and uses their own MPI implementation. I have read this MPI implementation have their own limits for 'tag' parameter (I tried different versions). However I have read 'tag' parameter limits are higher than 5000000.

Sombody received the same error? Is it related to MKL implementation or MPI implementation?

Many thanks!

duplicated -- https:/

Gennady_F_Intel — Fri, 25 Apr 2014 14:58:43 GMT

duplicated -- https://software.intel.com/en-us/forums/topic/509830

topic duplicated -- https:/ in Intel® oneAPI Math Kernel Library

Fatal error in MPI_Recv: Invalid tag

duplicated -- https:/