[OMPI devel] algorithm selection in open mpi

2012-04-02 Thread roswan ismail
Hi all..   I am Roswan Ismail from Malaysia. I am focusing on MPI communication performance on quad-core cluster at my university. I used Open MPI-1.4.3 and measurements were done using scampi benchmark.   As I know, open MPI used multiple algorithms to broadcast data (MPI_BCAST) such as binomial,

[OMPI devel] OpenMPI and R

2012-04-02 Thread Benedict Holland
Hi All, I am on ubuntu 11.10 and the only package that they have for OpenMPI is 1.4.3 and I noticed the latest was 1.5.5 and I decided to try to use it to get the Rmpi R package compiled against it. I failed. My R version is 2.15, the OpenMPI is 1.5.5. I compiled it and installed it but when I tri

Re: [OMPI devel] Remove Portals support?

2012-04-02 Thread Paul H. Hargrove
While Cray has sold several Cray XT systems with the portals network API, they also provide a Cray-supported MPI implementation. So, the question is how many Cray XT systems choose to deploy OpenMPI *and* will want to upgrade to OpenMPI 1.7? -Paul On 3/27/2012 1:15 PM, Aurélien Bouteiller wrot

Re: [OMPI devel] New MOSIX components draft

2012-04-02 Thread Ralph Castain
Looks like you failed to build the shared memory component. The system isn't seeing a comm path between procs on the same node. Sent from my iPad On Apr 2, 2012, at 7:47 AM, Alex Margolin wrote: > I found the problem(s) - It was more then just type redefinition, but I fixed > it too. I also a

Re: [OMPI devel] Regarding the Installation of Open MPI in Amazon EC2 cloud by using UNIVA cluster

2012-04-02 Thread Jeffrey Squyres
I can't quite parse your question. In general, if libmpi.so is not in your default linker search path, you probably need to add it to your LD_LIBRARY_PATH (e.g., in your shell startup file, such as .bashrc). This will be true regardless of whether you are using real machines or virtual machin

Re: [OMPI devel] New MOSIX components draft

2012-04-02 Thread Alex Margolin
I found the problem(s) - It was more then just type redefinition, but I fixed it too. I also added some code for btl/base to prevent/detect a similar problem in the future. A newer version of my MOSIX patch (odls + btl + fix) is attached. The BTL, still doesn't work, though, and when I try to u