Re: [OMPI users] SIGV at MPI_Cart_sub

2012-01-10 Thread Anas Al-Trad
Anyway, after compiling my code with icc/11.1.069, the job is running without stuck or that sigv which it occurred before when using icc/12.1.0 module. Also I have to point that when I was using icc/12.1.0 I was getting strange outputs or stuck, and I solved them by changing the name of parameters

Re: [OMPI users] SIGV at MPI_Cart_sub

2012-01-10 Thread Anas Al-Trad
d be correct and it is according to filling the rank array at the beginning of this code snippet. On Tue, Jan 10, 2012 at 5:25 PM, Jeff Squyres wrote: > This may be a dumb question, but are you 100% sure that the input values > are correct? > > On Jan 10, 2012, at 8:16 AM, Anas

Re: [OMPI users] SIGV at MPI_Cart_sub

2012-01-10 Thread Anas Al-Trad
Hi Ralph, I changed the intel icc module from 12.1.0 to 11.1.069, the previous default one used at a Neolith Cluster. I submitted the job and I still waiting for the result. Here is the message of the segmentation fault: [n764:29867] *** Process received signal *** [n764:29867] Signal: Floating p

Re: [OMPI users] SIGV at MPI_Cart_sub

2012-01-10 Thread Anas Al-Trad
Thanks Paul, yes I use Intel 12.1.0, and this error is intermittent, not always produced but most of the times it occurs. My program is large and contains many files that are related to each other, I don't think it will help if I take the snippet of the code. The program run parallel matrix multipl

[OMPI users] SIGV at MPI_Cart_sub

2012-01-10 Thread Anas Al-Trad
Dear people, In my application, I have the segmentation fault of Integer Divide-by-zero when calling MPI_cart_sub routine. My program is as follows, I have 128 ranks, I make a new communicator of the first 96 ranks via MPI_Comm_creat. Then I create a grid of 8X12 by calling MPI_Cart_