mpirun doesn't work for np > 1

[LydiaMak]

Hi,

When running mpirun -np 2 (or higher) mosfit {json_file} -m {model} it crashes. I have mentioned it to Matt in private communication but since the issue still exists I thought to open an issue just in case someone have come across a similar issue. The error I get is:

Traceback (most recent call last):
File "/Users/lydiamakrygianni/opt/miniconda3/lib/python3.8/site-packages/schwimmbad/mpi.py", line 72, in init
self.wait()
File "/Users/lydiamakrygianni/opt/miniconda3/lib/python3.8/site-packages/schwimmbad/mpi.py", line 122, in wait
func, arg = task
ValueError: not enough values to unpack (expected 2, got 1)
application called MPI_Abort(MPI_COMM_WORLD, 0) - process 1

for as many processes with rank>0.

It's been run on various machines and I have also tried the example but it also doesn't work. I use python 3.8.

If anyone got any idea (or can confirm example works for them), it would be quite useful for some very long runs!

Cheers,

Lydia

[wakatara]

I also have the precise same problem on OSX, and several flavours of Linux.

[bmockler]

Hi all, it looks like there might be a bug in schwimmbad which is causing incompatibility with newer versions of mpi4py: https://githubmemory.com/repo/adrn/schwimmbad/issues I get the same issue when I am using schwimmbad v0.3.1 and mpi4py v3.0.3. When i downgrade to schwimmbad v0.3.0, it works for me. ~Brenna

…

On Aug 16, 2021, at 8:00 AM, Daryl Manning ***@***.***> wrote:  I also have the precise same problem on OSX, and several flavours of Linux. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or unsubscribe. Triage notifications on the go with GitHub Mobile for iOS or Android.

[ZhihaoChen5]

Hi all, it looks like there might be a bug in schwimmbad which is causing incompatibility with newer versions of mpi4py: https://githubmemory.com/repo/adrn/schwimmbad/issues I get the same issue when I am using schwimmbad v0.3.1 and mpi4py v3.0.3. When i downgrade to schwimmbad v0.3.0, it works for me. ~Brenna
…
On Aug 16, 2021, at 8:00 AM, Daryl Manning @.***> wrote:  I also have the precise same problem on OSX, and several flavours of Linux. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or unsubscribe. Triage notifications on the go with GitHub Mobile for iOS or Android.

Agreed! If v0.3.1 doesn't work, please try v0.3.0. At least it works for me.

[dnfarias]

Hi all,

I'm facing the same issue on OSX Monterey with python3.9 (anaconda env). Can you confirm the working python version, please? (I'll try to use a fresh new environment). Thanks!

[ZhihaoChen5]

Hi all,

I'm facing the same issue on OSX Monterey with python3.9 (anaconda env). Can you confirm the working python version, please? (I'll try to use a fresh new environment). Thanks!

Python 3.6.8 MOSFiT v1.1.7 and schwimmbad 0.3.0 for me.

[dnfarias]

Dear @hatter5,

I can confirm that it's working for me :-) Many thanks!