[OMPI users] Network Problem?

(This may be a duplicate. An earlier post seems to have been lost). I'm using openmpi (1.3.2) to run on 3 dual processor machines (running linux, slackware-12.1, gcc-4.4.0). Two are directly on my LAN while the 3rd is connected to my LAN via VPN and NAT (I can communicate in either direction

Re: [OMPI users] Infiniband requirements

Gus Correa wrote: > Hi Jim, list > > 1) Your first question: > > I opened a thread on this list two months or so ago about a similar > situation: when OpenMPI would use/not use libnuma. > I asked a question very similar to your question about IB support, > and how the configure script would

Re: [OMPI users] Checkpointing automatically at regular intervals

Dear Josh, I am sure it will definitely be good because if someone is using OPEN MPI for checkpointing his application, he will not want to sit and checkpoint the application manually; and this can be a real pain if its a long running application. I would imagine an automatic

Re: [OMPI users] Checkpointing automatically at regular intervals

Hi, Am 30.06.2009 um 14:29 schrieb Kritiraj Sajadah: I can manually checkpoint an MPI application using OPEN MPI and BLCR. However, I now want to checkpointing my application automatically at every 5 minutes. Is there a way in OPEN MPI to ensure automatic checkpointing without

Re: [OMPI users] Apllication level checkpointing tools.

Josh This actually is a concern addressed to all the authors/OpenMPI contributors. The links to IEEExplore or ACM requires a subscription which, unfortunately, not all the list subscribers have. Would it be a copyright violation to post the actual paper/article to the list instead of just a

Re: [OMPI users] Apllication level checkpointing tools.

Checkpoint/restart in Open MPI supports TCP, Shared Memory, Infiniband, and Myrinet interconnects (possibly others, but they have not been tested) [1]. Is this what you are looking for? -- Josh [1] Hursey, J., Mattox, T. I., and Lumsdaine, A. 2009. "Interconnect agnostic

Re: [OMPI users] Checkpointing automatically at regular intervals

Currently, there is no mechanism to checkpoint every X minutes in Open MPI. As mentioned below you can use a script to initiate the checkpoint every X minutes. Alternatively it should not be too difficult to add such a feature to Open MPI. If enough people would be interested I can file

Re: [OMPI users] Checkpointing automatically at regular intervals

Hi, I think that you can write a simple script such as: wihle `pgrep mpirun` != "" ompi-checkpoint `pidof mpirun` sleep 5 done Le 30 juin 09 à 14:29, Kritiraj Sajadah a écrit : Dear All, I can manually checkpoint an MPI application using OPEN MPI and BLCR. However, I now want to

Re: [OMPI users] Apllication level checkpointing tools.

Sorry but the question is not very clear. but you can check if this work linked blow can help you. DejaVu: Transparent User-Level Checkpointing, Migration, and Recovery for Distributed Systems Joseph F. Ruscio Michael A. Heffner Srinidhi Varadarajan Le 30 juin 09 à 15:00,

Re: [OMPI users] Apllication level checkpointing tools.

Dear Mohamed, Is there some checkpointing software for interconnect other than tcp say IB or Myrinet? Regards Neeraj Chourasia (MTS) Computational Research Laboratories Ltd. (A wholly Owned Subsidiary of TATA SONS Ltd) B-101, ICC Trade Towers, Senapati Bapat Road Pune 411016 (Mah) INDIA

Re: [OMPI users] Apllication level checkpointing tools.

Dear Mohamed, Thank you for the link Regards, Raj --- On Tue, 6/30/09, Mohamed Slim bouguerra wrote: > From: Mohamed Slim bouguerra > Subject: Re: [OMPI users] Apllication level checkpointing tools. >

[OMPI users] Checkpointing automatically at regular intervals

Dear All, I can manually checkpoint an MPI application using OPEN MPI and BLCR. However, I now want to checkpointing my application automatically at every 5 minutes. Is there a way in OPEN MPI to ensure automatic checkpointing without the user intervention while the application is

Re: [OMPI users] Apllication level checkpointing tools.

Dear Kritiraj, You can use DMTCP http://sourceforge.net/projects/dmtcp Le 30 juin 09 à 13:59, Kritiraj Sajadah a écrit : Daer All, I have successfully comfigure OPENMPI with BLCR and id some test. hover, i now want to do some testing with an Application Level checkpointng tools.

[OMPI users] Apllication level checkpointing tools.

Daer All, I have successfully comfigure OPENMPI with BLCR and id some test. hover, i now want to do some testing with an Application Level checkpointng tools. I tried using libckpt but could not install it. Do anyone of you know any open source application level checkpointing tools

Re: [OMPI users] enable-mpi-threads

On Jun 30, 2009, at 1:29 AM, rahmani wrote: I want install openmpi in a cluster with multicore processor. Is it necessary to configure with --enable-mpi-threads option? when this option should be used? Open MPI's threading support is functional but not optimized. It depends on the problem

Re: [OMPI users] Some Newbie questions

On Jun 29, 2009, at 9:48 PM, Ashika Umanga Umagiliya wrote: I am parallelizing tomography algorithm which takes about 5 hours using single processor. I want to gain full performance and should reduce the computational time as short as possible. I was wondering the SSh/RSH launcher could

Re: [OMPI users] Cannot create X11 window in Rank 0 node(master) ?

Your cmd line specified that we are only to use the host "biggserver", so all ranks will go there. If you want ranks to go somewhere else, then you need to include that location in your -host spec. See "man orte_hosts" for details. On Jun 30, 2009, at 3:53 AM, Ashika Umanga Umagiliya

[OMPI users] Cannot create X11 window in Rank 0 node(master) ?

Hi all, I have written mandelbrot rendering using X11.I have two nodes with OpenMPI. In my code, the rank 0 node(master) does the data collection from salves, Window creation using X11 and render the graph.(using XCreateSimpleWindow() ). Slave nodes calculate and send data to master. But

[OMPI users] enable-mpi-threads

Hi every one I want install openmpi in a cluster with multicore processor. Is it necessary to configure with --enable-mpi-threads option? when this option should be used? tanks