Re: [OMPI users] Error launching w/ 1.5.3 on IB mthca nodes

2012-01-04 Thread V. Ram
Hello. Sorry for the delay in confirming the minimum load that would trigger the RnR error; the holidays here were a significant interruption. On Mon, Dec 19, 2011, at 03:30 PM, Yevgeny Kliteynik wrote: > What's the smallest number of nodes that are needed to reproduce this > problem? Does it

[OMPI users] Can we avoid derived datatypes?

2012-01-04 Thread devendra rai
Hello All, I need to send a struct- datatype over MPI. Currently, I send the strcture as a series of MPI_BYTEs and on the other end, I dereference it as though it were a struct- type. Something like this: MPI_Ssend((void*), sizeof(MasterSlavePayload), MPI_BYTE,

Re: [OMPI users] MPI::Request::Test not working

2012-01-04 Thread devendra rai
Hi Jeff Thanks a lot. Yeah, I figured that out. Anyway, even in C++ program, I am using C interfaces for the MPI bit. For me, its lot easier to understand the documentation and help this way. Thanks a lot once again. Best, Devendra From: Jeff Squyres

Re: [OMPI users] Latest Intel Compilers (ICS, version 12.1.0.233 Build 20110811) issues ...

2012-01-04 Thread Richard Walsh
Tim/All, Thanks ... !! ... your response is on target, version 12.1.0.233 of the Intel compiler has a vectorization bug. Moreover, this problem has been addressed with the following go-around in the 1.5.5 OpenMPI release with the following fix in opal/mca/memory/linux/malloc.c: /* With Intel

[OMPI users] MPI-2 in MX (was: MPI 2 support in sm btl)

2012-01-04 Thread Jeff Squyres
I'm afraid I don't know offhand -- but I do have a dim recollection that MX requires all processes to be available at INIT time (i.e., processes that join later, e.g., via MPI-2 dynamics, will not communicate via MX). That may or may not be true -- don't hold me to that. Can someone who knows

Re: [OMPI users] possibly undefined macro: AC_PROG_LIBTOOL

2012-01-04 Thread Jeff Squyres
I don't know if I've tried explicitly with 2.67, but I'd be surprised if it doesn't recognize AC_PROG_LIBTOOL. Also note that AC_PROG_LIBTOOL comes from Libtool, not Autoconf. FWIW, I've seen this kind of error when AC/AM/LT are not installed to the same tree. If they're installed to

Re: [OMPI users] MPI::Request::Test not working

2012-01-04 Thread Jeff Squyres
It looks like you are using C++ improperly. I would suggest something like this (typed in email; not verified with a compiler): MPI::Request Isend_request; Isend_request = MPI::COMM_WORLD.Isend(...); MPI::Status status; if (Isend_request.Test(status)) { // ... } On Dec 30, 2011, at 10:21