Re: [OMPI users] Shared Memory Collectives

2011-12-19 Thread Nilesh Mahajan
Hi, I am trying to implement the following collectives in MPI sharedmemory, Alltoall, Broadcast, Reduce with zero copy optimizations.So for Reduce, my compiler allocates all the send buffers in sharedmemory (mmap anonymous), and allocates only one receive buffer againin shared memory. Then all the

Re: [OMPI users] exploitation of vampirTrace generated otf files.

2011-12-19 Thread Mathieu westphal
Hello I think it's solved. It's indeed the number of tick, and i found the information with the otfinfo command, wich give me the line : time resolution | 2.27 Ghz This value allow us to convert these tick values to seconds values. THanks all. Le 19/12/2011 14:32, Mathieu westphal a écrit :

[OMPI users] exploitation of vampirTrace generated otf files.

2011-12-19 Thread Mathieu westphal
Hello I'm generating otf file by compiling my programm with mpicc-vt. It works very well and i can visualize the trace with the free Vampir. But i need to analyze the results with some mathematical tools. with vampir , i cannot extract any usefull data. So i try to use otfdump to extract the

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

2011-12-19 Thread Yevgeny Kliteynik
Hi, > By any chance is it a particular node (or pair of nodes) this seems to > happen with? No. I've got 40 nodes total with this hardware configuration, and the problem has been seen on most/all nodes at one time or another. It doesn't seem, based on the limited

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

2011-12-19 Thread TERRY DONTJE
On 12/19/2011 2:10 AM, V. Ram wrote: On Thu, Dec 15, 2011, at 09:28 PM, Jeff Squyres wrote: Very strange. I have a lot of older mthca-based HCAs in my Cisco MPI test cluster, and I don't see these kinds of problems. Can I ask what version of OFED you're using, or what version of OFED the IB

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

2011-12-19 Thread V. Ram
On Thu, Dec 15, 2011, at 09:28 PM, Jeff Squyres wrote: > Very strange. I have a lot of older mthca-based HCAs in my Cisco MPI > test cluster, and I don't see these kinds of problems. Can I ask what version of OFED you're using, or what version of OFED the IB software stack is coming from? Thank

Re: [OMPI users] Quick question on compiling Openmpi w/ Torque and Infiniband

2011-12-19 Thread Addepalli, Srirangam V
Hello Chai, Try copying the libraries to your localnode to /usr/local/ and rebuild on the slave nodes. Just tested and it appears to work. Rangam -Original Message- From: users-boun...@open-mpi.org [mailto:users-boun...@open-mpi.org] On Behalf Of Chaitanya Krishna Sent: Sunday, December