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[Mpi3-tools] Notes from MPI Forum WG Meeting
by Martin Schulz 09 Apr '09

09 Apr '09

Hi all, The notes from our WG discussions at the MPI Forum are now online on the Wiki. We focused exclusively on the debugging APIs and basically reached a state where we can move forward with writing each API up. Our next TelCon will be in two weeks on 4/20 at the usual time. The agenda will be first a quick report from this week's meeting with a chance for people who couldn't make it to comment, a short discussion on whether we should include the topic of PMI (Process Management Interface) in this WG, and (for a majority of the time) a discussion on the proposal for an MPI state/information interface. Also, please feel free to comment on the meeting minutes and the debugging APIs before the TelCon via email. Martin _______________________________________________________________________ Martin Schulz, schulzm(a)llnl.gov, http://people.llnl.gov/schulz6 CASC @ Lawrence Livermore National Laboratory, Livermore, USA

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[Mpi3-tools] TelCon from MPI Forum Meeting soon
by Martin Schulz 07 Apr '09

07 Apr '09

Hi all, We are running a bit late at the MPI Forum and will dial in for the MPI tools WG as soon as possible (hopefully not more than 5-10 minutes). Martin _______________________________________________________________________ Martin Schulz, schulzm(a)llnl.gov, http://people.llnl.gov/schulz6 CASC @ Lawrence Livermore National Laboratory, Livermore, USA

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Re: [Mpi3-tools] No TelCon / WG discussions at MPI-Forum Meeting
by John DelSignore 07 Apr '09

07 Apr '09

Hi Martin, I'm on, and so are a few others. We're waiting for you guys... Cheers, John D. Martin Schulz wrote: > Hi all, > > Just as a reminder: we will not have a MPI tools WG TelCon this > week due to the face to face meeting at the MPI Forum in Chicago. > The next regular call is scheduled for 4/20. > > However, there will a WG meeting on Tuesday afternoon at 2pm CT > to discuss the forum feedback on the proposed handle and message > queue APIs. We will have the ability to setup a speakerphone so > that people who can't make it to Chicago can call in. Here is > the dial-in information: > >> Toll Free Dial In Number for Offsite Participants: 866-914-3976 >> International Access/Caller Paid Dial In Number: 925-424-8105 >> Dial In Number for LLNL Onsite Participants: 4-8105 >> >> Access Security Code: 860609 # > > I hope many of you can make this. > > Martin > > > > _______________________________________________________________________ > Martin Schulz, schulzm(a)llnl.gov, http://people.llnl.gov/schulz6 > CASC @ Lawrence Livermore National Laboratory, Livermore, USA > _______________________________________________ > Mpi3-tools mailing list > Mpi3-tools(a)lists.mpi-forum.org > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi3-tools > >

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[Mpi3-tools] No TelCon / WG discussions at MPI-Forum Meeting
by Martin Schulz 05 Apr '09

05 Apr '09

Hi all, Just as a reminder: we will not have a MPI tools WG TelCon this week due to the face to face meeting at the MPI Forum in Chicago. The next regular call is scheduled for 4/20. However, there will a WG meeting on Tuesday afternoon at 2pm CT to discuss the forum feedback on the proposed handle and message queue APIs. We will have the ability to setup a speakerphone so that people who can't make it to Chicago can call in. Here is the dial-in information: > Toll Free Dial In Number for Offsite Participants: 866-914-3976 > International Access/Caller Paid Dial In Number: 925-424-8105 > Dial In Number for LLNL Onsite Participants: 4-8105 > > Access Security Code: 860609 # I hope many of you can make this. Martin _______________________________________________________________________ Martin Schulz, schulzm(a)llnl.gov, http://people.llnl.gov/schulz6 CASC @ Lawrence Livermore National Laboratory, Livermore, USA

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[Mpi3-tools] Message Queue Display Slides for MPI forum meeting
by Chris Gottbrath 03 Apr '09

03 Apr '09

MPI3 Tools Working Group Folks, Here are the slides that I said I'd provide for Jeff to talk through at the MPI forum meeting next week. ********** This transmission contains confidential and/or legally privileged information from TotalView Technologies intended only for the use of the individual(s) to which it is addressed. If you are not the intended recipient, you are hereby notified that any disclosure, copying or distribution of this information or the taking of any action in reliance on the contents of this transmission is strictly prohibited. If you have received this transmission in error, please notify us immediately. ********** Cheers, Chris Chris Gottbrath, 508-652-7735 or 774-270-3155 Director of Product Management, TotalView Technologies chris.gottbrath(a)totalviewtech.com -- Learn how to radically simplify your debugging: http://www.totalviewtech.com/support/white_papers.html?id=163 >

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[Mpi3-tools] Group query proposal.
by Ashley Pittman 30 Mar '09

30 Mar '09

All, Firstly an apology, it seems I'm a little late arriving at this list, I thought I'd subscribed to the relevant ones last summer until Jeff gave me a heads up about this one a couple of weeks ago. I have been working on MPI debugging tools on and off for a few years now and at one point had a proposal ready to take to Euro-MPI, unfortunately at the time this didn't get to see the light of day however this working group is the ideal place to present this work. My proposal resolves around extending the existing message queue interface to cover collective operations, at it's heart is a simple per communicator rank-local counter and "active bit" which can be queried by the debbugger. This allows the debugger to see which ranks are performing collective operations at a given time and hence detect deadlock conditions and automatically locate ranks of interest in hung jobs. This code has been a feature of the Quadrics MPI stack for a number of years and has proved itself worthwhile time and time again, I hope to now bring this functionality to a wider audience, at this time I have working patches for OpenMPI and a open-source tool for making use of the new information. The Quadrics work is based on MPICH and MPICH2 and could be brought up to date with little work. Unfortunate timing means I can't make the April 7th meeting although I should be able to partake in the April 20th Conference call, it's the day after I return from holiday however so at that stage I'll be able to answer questions with a formal proposal following shortly after. Yours, Ashley Pittman.

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[Mpi3-tools] Dial-in Access for MPI Tools WG Meeting in Chicago
by Martin Schulz 27 Mar '09

27 Mar '09

Hi all, As discussed during our last TelCon, we will use the next MPI forum face-to-face meeting to continue our discussion on the various debugging interfaces. In particular we will go over the feedback from the MPI forum and try to get the documents to a point where they can be written up. To allow people, who can't make it to Chicago, to participate, I was told that we will have access to a speakerphone. The meeting will be on Tuesday April 7th between 2pm and 5pm CDT (sorry for the later time). We will use the usual number: - Toll Free Dial In Number for Offsite Participants: 866-914-3976 - International Access/Caller Paid Dial In Number: 925-424-8105 - Dial In Number for LLNL Onsite Participants: 4-8105 - Access Security Code: 860609 # Martin _______________________________________________________________________ Martin Schulz, schulzm(a)llnl.gov, http://people.llnl.gov/schulz6 CASC @ Lawrence Livermore National Laboratory, Livermore, USA

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[Mpi3-tools] Notes from 3/16 available
by Martin Schulz 20 Mar '09

20 Mar '09

Hi all, FYI - the notes from Monday's TelCon are now available on the Wiki. As usual, please feel free to add or correct. Martin _______________________________________________________________________ Martin Schulz, schulzm(a)llnl.gov, http://people.llnl.gov/schulz6 CASC @ Lawrence Livermore National Laboratory, Livermore, USA

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Re: [Mpi3-tools] proccess ID type?
by William Gropp 16 Mar '09

16 Mar '09

They should be the same type, but they shouldn't be a type that is specific to one particular choice of operating system. pid_t isn't a universal type. int64_t might be sufficient to contain any simple enumeration of processes; otherwise, we'll need to define a type and the accessors for it. Bill On Mar 16, 2009, at 3:03 PM, Geoffrey R. Paulsen wrote: > Hello, I noticed a difference in the type used to declare pids in > two different areas, and I'm curious: > > 1) Why aren't they the same type? > 2) Why aren't we using a standardzed type like pid_t ? > > Location 1) http://www.mcs.anl.gov/research/projects/mpi/mpi-debug/ > > Taken from: mpich/mpid/ch2/attach.h > > typedef struct { > char * host_name; /* Something we can pass to > inet_addr */ > char * executable_name; /* The name of the image */ > int pid; /* The pid of the process */ > } MPIR_PROCDESC; > > > Location 2) http://www.mcs.anl.gov/research/projects/mpi/mpi-debug/mpi_interface.h.html > > Taken from: mpich/src/infoexport/mpi_interface.h > > #if (FOR_MPI2) > /* For handling attachment to new processes in MPI-2 we need > to know > * where they are. > */ > typedef struct mqs_process_location { > long pid; > char image_name [FILENAME_MAX]; > char host_name [64]; > } mqs_process_location; > #endif > > > These two structures look to have similar purposes. Is one a > "newer" version of the other? Are they from different MPI > implementations of the MSQ? > > > Thanks, > Geoff Paulsen > > _______________________________________________ > Mpi3-tools mailing list > Mpi3-tools(a)lists.mpi-forum.org > http://lists.mpi-forum.org/mailman/listinfo.cgi/mpi3-tools William Gropp Deputy Director for Research Institute for Advanced Computing Applications and Technologies Paul and Cynthia Saylor Professor of Computer Science University of Illinois Urbana-Champaign

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Re: [Mpi3-tools] Hello from HP-MPI
by Martin Schulz 16 Mar '09

16 Mar '09

Hi Geoff, Welcome to the group. Martin At 12:28 PM 3/16/2009, Geoffrey R. Paulsen wrote: >Hello All, > > I just wanted to take a moment and introduce myself to the team. > > I work in software development for HP-MPI in the Dallas, TX > area. I look forward to working with everyone on the tools > interface standardization effort for MPI3. > > Geoff (pronouced Jeff) > >_______________________________________________ >Mpi3-tools mailing list >Mpi3-tools(a)lists.mpi-forum.org >http:// lists.mpi-forum.org/mailman/listinfo.cgi/mpi3-tools _______________________________________________________________________ Martin Schulz, schulzm(a)llnl.gov, http://people.llnl.gov/schulz6 CASC @ Lawrence Livermore National Laboratory, Livermore, USA

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