Re: [OMPI users] mpirun on Kubuntu 20.4.1 hangs

2020-10-21 Thread Jeff Squyres (jsquyres) via users
There's huge differences between Open MPI v2.1.1 and v4.0.3 (i.e., years of development effort); it would be very hard to categorize them all; sorry! What happens if you mpirun -np 1 touch /tmp/foo (Yes, you can run non-MPI apps through mpirun) Is /tmp/foo created? (i.e., did the job run,

Re: [OMPI users] mpirun on Kubuntu 20.4.1 hangs

2020-10-21 Thread Jorge SILVA via users
Hello Jeff, The  program is not executed, seems waits for something to connect with (why twice ctrl-C ?) jorge@gcp26:~/MPIRUN$ mpirun -np 1 touch /tmp/foo ^C^C jorge@gcp26:~/MPIRUN$ ls -l /tmp/foo ls: impossible d'accéder à '/tmp/foo': Aucun fichier ou dossier de ce type no file  is created.

[OMPI users] Delays in Open MPI mailing list

2020-10-21 Thread Jeff Squyres (jsquyres) via users
FYI: We've been having some problems with our mailing list provider over the past few weeks. No mails have been lost, but sometimes mails queue up endlessly at our mailing list provider until a human IT staffer goes in, fixes a problem, and effectively releases all the mails that have queued up

Re: [OMPI users] mpirun on Kubuntu 20.4.1 hangs

2020-10-21 Thread Gilles Gouaillardet via users
Hi Jorge, If a firewall is running on your nodes, I suggest you disable it and try again Cheers, Gilles On Wed, Oct 21, 2020 at 5:50 AM Jorge SILVA via users wrote: > > Hello, > > I installed kubuntu20.4.1 with openmpi 4.0.3-0ubuntu in two different > computers in the standard way. Compiling w

Re: [OMPI users] Code failing when requesting all "processors"

2020-10-21 Thread Diego Zuccato via users
Il 14/10/20 14:32, Jeff Squyres (jsquyres) ha scritto: >> The version is 3.1.3 , as packaged in Debian Buster. > The 3.1.x series is pretty old.  If you want to stay in the 3.1.x > series, you might try upgrading to the latest -- 3.1.6.  That has a > bunch of bug fixes compared to v3.1.3. I'm boun

[OMPI users] Is there a workaround available to get around fork() where I don't have access to the program's source code?

2020-10-21 Thread Ewen Chan via users
To Whom It May Concern: I have a program that I am running that has the MPI call fork() and when I run the program, I get the following warning: -- An MPI process has executed an operation involving a call to the "fork()" sy

Re: [OMPI users] mpirun on Kubuntu 20.4.1 hangs

2020-10-21 Thread Jorge SILVA via users
Hello Gus,  Thank you for your answer..  Unfortunately my problem is much more basic. I  didn't try to run the program in both computers , but just to run something in one computer. I just installed the new OS an openmpi in two different computers, in the standard way, with the same result.

Re: [OMPI users] mpirun on Kubuntu 20.4.1 hangs

2020-10-21 Thread Gus Correa via users
Hi Jorge You may have an active firewall protecting either computer or both, and preventing mpirun to start the connection. Your /etc/hosts file may also not have the computer IP addresses. You may also want to try the --hostfile option. Likewise, the --verbose option may also help diagnose the pr

Re: [OMPI users] Anyone try building openmpi 4.0.5 w/ llvm 11

2020-10-21 Thread SERGENT, MARC via users
Hi Alan, I do not have any experience building Open MPI with the new “flang” compiler from the LLVM project (previously known as f18), but I successfully built an Open MPI 4.0.5 with the legacy “flang” compiler on top of LLVM 9.0.0. If your users’ requirement for LLVM is not strongly linked on L