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SmileiPIC / Smilei

Particle-in-cell code for plasma simulation
https://smileipic.github.io/Smilei
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species issue to induce the the plasma wake field #339

Closed Sanjeev273 closed 3 years ago

Sanjeev273 commented 3 years ago

Hi all smilei team member,

Recently, I noticed that when I used the species electron and proton then simulation stuck after some time. but there is no error msg and simulation status is running but there is no progress. When I use single species only electron then its working fine. Can any one suggest me why this problem occurred with two species

mccoys commented 3 years ago

Hi, We need more information. We run simulations with many species without problem. Please join your input file or give more details.

Sanjeev273 commented 3 years ago

passivebeamdumping1D.txt Plz find here the input file.

mccoys commented 3 years ago

Could you try to use print_every=1 and see if there is really no progress at all ? Maybe it is just very slow.

Sanjeev273 commented 3 years ago

Could you try to use print_every=1 and see if there is really no progress at all ? Maybe it is just very slow.

@mccoys I use 'print_every = 1'. There is no progress after 5221 iteration.

mccoys commented 3 years ago

So it keeps running well until 5221, but it stops afterwards ?

Sanjeev273 commented 3 years ago

So it keeps running well until 5221, but it stops afterwards ?

Yes I can see the progress up to 5221. afterward there is no progress. but in the status I can the the job is running. I monitor the status for 4 hours after 5221 iterations.

mccoys commented 3 years ago

Your input file works fine with or without ions on my computer. This means there is some issue with your installation. Could you show us your log output ? You may try some things (one by one) to pinpoint the problem:

Sanjeev273 commented 3 years ago

passivebeamdumping1D.txt activebeamdumping.sge.o1526532.txt

mccoys commented 3 years ago

Wait ... your simulation goes well over 5221 ! Is there really a problem ?

Sanjeev273 commented 3 years ago

still there is no progress.

mccoys commented 3 years ago

The last line of the log output is 87600/2229637 1.6644e+04 6.5241e+02 ( 7.0798e- Is it how it ends ? It is very strange to see the line is cut. Are you sure your system is not having some issues ?

Sanjeev273 commented 3 years ago

The last line of the log output is 87600/2229637 1.6644e+04 6.5241e+02 ( 7.0798e- Is it how it ends ? It is very strange to see the line is cut. Are you sure your system is not having some issues ?

I am using CSF3 facility at university of Manchester. I already sent an email to IT department regarding this issue and waiting for reply.

mccoys commented 3 years ago

Just letting you know that some systems have a buffering mechanism that makes the output in the log file only at some points (every minutes or so). The simulation still runs behind.