Re: [OMPI devel] How to 'hook' a new BTL to OMPI call chain?

2016-03-16 Thread Jeff Squyres (jsquyres)
On Mar 16, 2016, at 5:38 PM, dpchoudh . wrote: > > I now have a follow up question: > I was trying to figure this out myself by taking the backtrace from the BTLs > that do work, and found that, since most of the internal functions are not > exported, the backtraces contain just the addresses w

Re: [OMPI devel] How to 'hook' a new BTL to OMPI call chain?

2016-03-16 Thread Jeff Squyres (jsquyres)
On Mar 16, 2016, at 12:52 PM, dpchoudh . wrote: > > Sorry about asking too many 101 level question, but here is another one: > > I have a BTL layer code, called 'lf' that is ready for unit testing; it > compiles with the OMPI tool chain (by doing a ./configure; make from the top > level direct

Re: [OMPI devel] How to 'hook' a new BTL to OMPI call chain?

2016-03-16 Thread dpchoudh .
Hi all Anyone willing to help? :-) I now have a follow up question: I was trying to figure this out myself by taking the backtrace from the BTLs that do work, and found that, since most of the internal functions are not exported, the backtraces contain just the addresses which are not all that h

[OMPI devel] How to 'hook' a new BTL to OMPI call chain?

2016-03-16 Thread dpchoudh .
Hello all Sorry about asking too many 101 level question, but here is another one: I have a BTL layer code, called 'lf' that is ready for unit testing; it compiles with the OMPI tool chain (by doing a ./configure; make from the top level directory) and have the basic data transport calls implemen

Re: [OMPI devel] RFC: RML change to multi-select

2016-03-16 Thread Ralph Castain
Interesting! Yeah, we debated about BTL or go direct to OFI. Finally opted for the latter as it seemed simpler than the BTL interface. > On Mar 16, 2016, at 7:29 AM, Howard wrote: > > Hi Ralph > > I dont know if it's relevant, but I'm working on an ofi BTL so we can use the > OSC rdma. > > H

Re: [OMPI devel] RFC: RML change to multi-select

2016-03-16 Thread Howard
Hi Ralph I dont know if it's relevant, but I'm working on an ofi BTL so we can use the OSC rdma. Howard Von meinem iPhone gesendet > Am 15.03.2016 um 17:21 schrieb Ralph Castain : > > Hi folks > > We are working on integrating the RML with libfabric so we have access to > both management Et

Re: [OMPI devel] MPI Error

2016-03-16 Thread Gilles Gouaillardet
Dominic, at first, you might try to add call MPI_Barrier(comm,ierr) between if (file_is_there .and. irank.eq.iroot) call MPI_FILE_DELETE(file,MPI_INFO_NULL,ierr) and call MPI_FILE_OPEN(comm,file,IOR(MPI_MODE_WRONLY,MPI_MODE_CREATE),MPI_INFO_NULL,iunit,ierr) /* there might me a race co

Re: [OMPI devel] MPI Error

2016-03-16 Thread Dominic Kedelty
Gilles, I do not have the latest mpich available. I tested using openmpi version 1.8.7 as well as mvapich2 version 1.9. both produced similar errors. I tried the mca flag that you had provided and it is telling me that a configuration file is needed. all processes return: STOP A configuration fi