[OMPI users] Cygwin. Strange issue with MPI_Isend() and packed data

Hello over there. We have a very strange issue when the program tries to send a non-blocking message with MPI_Isend() and packed data: if we run this send after some unnecessary code (see details below), it works, but without it, not. This program uses dynamic spawning to launch processes. Bel

[OMPI users] Cygwin. Problem with MPI_Comm_disconnect() in multiple spawns

Hello, We've been using OMPI 4.1.0 like a singleton in Linux and Cygwin. The application is interactive and the user can launch several jobs at the time. The jobs are launched with the Spawn function. On Cygwin, when MPI_Comm_disconnect() is called in one job (lets say, A), and another (B) is

Re: [OMPI users] Issue with MPI_Get_processor_name() in Cygwin

ou are providing a character string of length 200, so OMPI is free to write past the end of your string and into some of your stack variables, hence you are "losing" the values of rank and size. The issue should be gone if you write `char hostName[MPI_MAX_PROCESSOR_NAME];` Cheers Joseph On 2/9/21

[OMPI users] Issue with MPI_Get_processor_name() in Cygwin

Hello, I have what it could be a memory corruption with MPI_Get_processor_name() in Cygwin. I’m using OMPI 4.1.0; I tried also in Linux (same OMPI version) but there isn’t an issue there. Below the example of a trivial spawn operation. It has 2 scripts: spawned and spawner. In the spawned scr

Re: [OMPI users] OMPI 4.1 in Cygwin packages?

Hi Marco, Apologies for my delay. I tried 4.1.0 and it worked!! Thank you very much for your assistance. Kind regards, Martín From: Marco Atzeri Sent: sábado, 6 de febrero de 2021 08:54 To: Martín Morales; Open MPI Users

Re: [OMPI users] OMPI 4.1 in Cygwin packages?

iernes, 5 de febrero de 2021 13:37 To: users@lists.open-mpi.org<mailto:users@lists.open-mpi.org> Cc: Marco Atzeri<mailto:marco.atz...@gmail.com> Subject: Re: [OMPI users] OMPI 4.1 in Cygwin packages? On 05.02.2021 16:18, Martín Morales via users wrote: > Hi Gilles, > > I tried bu

Re: [OMPI users] OMPI 4.1 in Cygwin packages?

What if you use the real names in your hostfile: DESKTOP-C0G4680 and WinDev2021Eval instead of master and worker? Cheers, Gilles On Fri, Feb 5, 2021 at 5:59 AM Martín Morales via users wrote: > > Hello all, > > > > Gilles, unfortunately, the result is the same. Attached the log y

Re: [OMPI users] OMPI 4.1 in Cygwin packages?

0.0/24 ... > > If the error persists, you can > > mpirun --mca btl_tcp_base_verbose 20 ... > > and then compress and post the logs so we can have a look > > > Cheers, > > Gilles > > On Thu, Feb 4, 2021 at 9:33 PM Martín Morales via users > wrote: >> &

Re: [OMPI users] OMPI 4.1 in Cygwin packages?

o:users@lists.open-mpi.org> Cc: Marco Atzeri<mailto:marco.atz...@gmail.com> Subject: Re: [OMPI users] OMPI 4.1 in Cygwin packages? On 03.02.2021 21:35, Martín Morales via users wrote: > Hello, > > I would like to know if any OMPI 4.1.* is going to be available in the > Cygwin

[OMPI users] OMPI 4.1 in Cygwin packages?

Hello, I would like to know if any OMPI 4.1.* is going to be available in the Cygwin packages. Thanks and regards, Martín

Re: [OMPI users] OMPI 4.0.4 crashes (or hangs) with dynamically processes allocation. OMPI 4.0.1 don't.

ge help-orted.txt / timedout [osboxes:02458] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages From: Martín Morales via users<mailto:users@lists.open-mpi.org> Sent: viernes, 14 de agosto de 2020 19:40 To: Howard Pritchard<mailto:hpprit...@gmail.

Re: [OMPI users] OMPI 4.0.4 crashes (or hangs) with dynamically processes allocation. OMPI 4.0.1 don't.

es in this communicator will now abort, [osboxes:02457] ***and potentially your MPI job) [osboxes:02458] 1 more process has sent help message help-orted.txt / timedout [osboxes:02458] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages From:

Re: [OMPI users] OMPI 4.0.4 crashes (or hangs) with dynamically processes allocation. OMPI 4.0.1 don't.

4.0.2-4.0.4 versions. This is supposed to be fixed in the 4.0.5 release. Could you try the 4.0.5rc1 tarball and see if that addresses the problem you're seeing? https://www.open-mpi.org/software/ompi/v4.0/ Howard Am Do., 6. Aug. 2020 um 09:50 Uhr schrieb Martín Morales via users mailto:

Re: [OMPI users] OMPI 4.0.4 crashes (or hangs) with dynamically processes allocation. OMPI 4.0.1 don't.

upgraded the internal PMIx version that introduced a problem with spawn for the 4.0.2-4.0.4 versions. This is supposed to be fixed in the 4.0.5 release. Could you try the 4.0.5rc1 tarball and see if that addresses the problem you're seeing? https://www.open-mpi.org/software/ompi/v4.0/

Re: [OMPI users] OMPI 4.0.4 crashes (or hangs) with dynamically processes allocation. OMPI 4.0.1 don't.

blem with spawn for the 4.0.2-4.0.4 versions. This is supposed to be fixed in the 4.0.5 release. Could you try the 4.0.5rc1 tarball and see if that addresses the problem you're seeing? https://www.open-mpi.org/software/ompi/v4.0/ Howard Am Do., 6. Aug. 2020 um 09:50 Uhr schrieb Martín Mor

[OMPI users] OMPI 4.0.4 crashes (or hangs) with dynamically processes allocation. OMPI 4.0.1 don't.

Hello people! I'm using OMPI 4.0.4 in a very simple scenario. Just 2 machines, one "master", one "worker" on a Ethernet LAN. Both with Ubuntu 18.04.I builded OMPI just like this: ./configure --prefix=/usr/local/openmpi-4.0.4/bin/ My hostfile is this: master slots=2 worker slots=2 I'm trying

[OMPI users] Problem with MPI_Spawn

Hello All. I'm using OMPI 4.0.1. I run MPI_Spawn() as a singleton. I need to run, in the same instance of my app, different spawn configurations. In this case I run first using my hostfile (i.e. setting a MPI_Info object with MPI_Info_create() function, and then setting the attributes with MPI_I

Re: [OMPI users] Non-blocking send issue

as MPI_Test) or you can use the asynchronous progress some MPI libraries provide. For this last option read the documentation of your MPI implementation to see how to enable asynchronous progress. George. On Mon, Dec 30, 2019 at 2:31 PM Martín Morales via users mailto:users@lists.open-mpi.org

[OMPI users] Non-blocking send issue

Hello all! Im with OMPI 4.0.1 and I have a strange behaviour (or at least, unexpected) with some non-blocking sending calls: MPI_Isend and MPI_Ibcast. I really need asyncronous sending so I dont use MPI_Wait after the send call (MPI_Isend or MPI_Ibcast); insted of this I check "on demand" with M

[OMPI users] Spawns no local

Hello all. I will like request you a practical example about to how to set with MPI_Info_set(&info, …) so that “info” passed to MPI_Comm_spawn() not spawns local any process (let say “master” host), but yes in a slave (“slave” host), without using mpirun (just “./o.out”). Im using OpenMPI 4.0.1.

Re: [OMPI users] Singleton and Spawn

course it can - however, I believe there is a bug in the add-hostfile code path. We can address that problem far easier than moving to a different interconnect. On Sep 25, 2019, at 11:39 AM, Martín Morales via users mailto:users@lists.open-mpi.org>> wrote: Thanks Steven. So, actually it

Re: [OMPI users] Singleton and Spawn

...@gmail.com ; Martín Morales Asunto: Re: [OMPI users] Singleton and Spawn Yes, of course it can - however, I believe there is a bug in the add-hostfile code path. We can address that problem far easier than moving to a different interconnect. On Sep 25, 2019, at 11:39 AM, Martín Morales via users

Re: [OMPI users] Singleton and Spawn

looking for a different, not MPI based interconnect, try ZeroMQ or other Remote Procedure Calls -- it won't be simpler though. Hope it helps: Steve On Wed, Sep 25, 2019, 13:15 Martín Morales via users, mailto:users@lists.open-mpi.org>> wrote: Hi all! This is my first post. I'm ne

[OMPI users] Singleton and Spawn

Hi all! This is my first post. I'm newbie on Open MPI (and on MPI likewise!). I recently build the current version of this fabulous software (v4.0.1) on two Ubuntu 18 machines (a little part of our Beowulf Cluster). I already read (a lot) the FAQ and posts on the mail users list but I cant figur