Re: [OMPI users] Infiniband - Any suggestions on "How can you prove to me that OpenMPI is using it?"

2006-12-20 Thread Jeff Squyres
On Dec 20, 2006, at 7:04 PM, Jeff Squyres wrote: I've been asked by the owner of the cluster "How can you prove to me that this openmpi job is using the Infiniband network?" At first I thought a simple netstat -an on the compute nodes might tell me, however I don't see the Infiniband IP's in

Re: [OMPI users] Infiniband - Any suggestions on "How can you proveto me that OpenMPI is using it?"

2006-12-20 Thread Andrew J Caird
You can also usually watch the counters on the IB cards and Ethernet cards. For programs that have a lot of communication between nodes it is quickly obvious which network you're using. The IB card monitoring is driver specific, but you should have some tools for this. For Ethernet you can

Re: [OMPI users] How do I compile OpenMPI with PGI compilers andF90 support?

2006-12-20 Thread Jeff Squyres
On Dec 20, 2006, at 1:54 PM, Andrus, Mr. Brian ((Contractor)) wrote: Thanks for the info. I downloaded the newer stable (1.1.2-1) and have tried it with the same results. Since I am trying to use the rpm source, everything comes out in one output file. I have compressed and attached it. Th

Re: [OMPI users] Infiniband - Any suggestions on "How can you prove to me that OpenMPI is using it?"

2006-12-20 Thread Jeff Squyres
On Dec 20, 2006, at 6:28 PM, Michael John Hanby wrote: Howdy, I'm new to cluster administration, MPI and high speed networks. I've compiled my OpenMPI using these settings: ./configure CC='icc' CXX='icpc' FC='ifort' F77='ifort' --with-mvapi=/usr/local/topspin --with-mvapi-libdir=/usr/local/top

[OMPI users] Infiniband - Any suggestions on "How can you prove to me that OpenMPI is using it?"

2006-12-20 Thread Michael John Hanby
Howdy, I'm new to cluster administration, MPI and high speed networks. I've compiled my OpenMPI using these settings: ./configure CC='icc' CXX='icpc' FC='ifort' F77='ifort' --with-mvapi=/usr/local/topspin --with-mvapi-libdir=/usr/local/topspin/lib64 --enable-static --prefix=/share/apps/openmpi/1.

Re: [OMPI users] How do I compile OpenMPI with PGI compilers andF90 support?

2006-12-20 Thread Andrus, Mr. Brian (Contractor)
Jeff, Thanks for the info. I downloaded the newer stable (1.1.2-1) and have tried it with the same results. Since I am trying to use the rpm source, everything comes out in one output file. I have compressed and attached it. Brian Andrus QSS Group, Inc. Naval Research Laboratory Monterey, Califo

Re: [OMPI users] How do I compile OpenMPI with PGI compilers and F90 support?

2006-12-20 Thread Jeff Squyres
Can you send the full output from configure and config.log? See this page for details of what we need for compile failures: http://www.open-mpi.org/community/help/ Also note that there is a slightly newer version than what you're trying -- v1.1.2 (1.1.3 may actually be out shortly, too

[OMPI users] How do I compile OpenMPI with PGI compilers and F90 support?

2006-12-20 Thread Andrus, Mr. Brian (Contractor)
I am trying to build an OpenMPI rpm for RHEL4U4 using the following: rpmbuild --rebuild --define configure_options"CC=pgcc CXX=pgCC F77=pgf77 FC=pgf90 FFLAGS=-fastsse FCFLAGS=-fastsse" ./openmpi-1.1.1-1.src.rpm It builds the rpm but there are some warnings: --- configure: WARNING:

[OMPI users] CfP Workshops on Virtualization/XEN in HPC Cluster and Grid Computing

2006-12-20 Thread Michael Alexander
Apologies if you received multiple copies of this message. === CALL FOR PAPERS Workshop on Virtualization/Xen in High-Performance Cluster and Grid Computing (XHPC'07) as part of The 16th IEEE International Symposium on High Performan

Re: [OMPI users] Suggestions needed for parallelisation of sorting algorithms (quicksort)

2006-12-20 Thread Renato Golin
On 12/20/06, Harakiri wrote: I will study through the suggested paper, however i actually read a different paper which suggested using less messages, i would imagine that for arrays of numbers lets say 100 Millions - the network messages become the critical factor. IMHO, It depends completely

Re: [OMPI users] Suggestions needed for parallelisation of sorting algorithms (quicksort)

2006-12-20 Thread Harakiri
Thanks for your input, --- Andreas Schäfer wrote: > that even though this results in _many_ messages, > the algorithms > optimal runtime complexity will compensate for it. > > But benchmark your own ;-) I will study through the suggested paper, however i actually read a different paper which s