Load/save results remotely

Question

Hi all,

Due to some quota issues, I would like to write my results to a file which lies on another station as well as load my meshes from a file on another station.

Without Dolfin, I usually use paramiko to write to remote files. However, since in Fenics I use dolfin.File since I want to make sure my file is in the vtk format, it is unclear to me how this works or even if it works.

Thank you

Comments

Hello,

(Not sure that this is really a fenics issue)
If you work with python, you could easily just copy/move around the files via ssh.

Basically, you can call arbitrary shell commands from python, so instead of

for i in range(n):
    u = Function(V)
    some_file << u

you could do

for i in range(n):
    u = Function(V)
    some_file << u
    some_system_command_to_move_file()

I am not an expert on this matter but that would be the first thing i'd try.

best regards

---

Thanks for your reply! I think I haven't formulated the question clearly.

I have a time-dependent PDE to solve and of course I would like to save the solution at each time-step, i.e. sth like

while t<T
    u = do_timestep(...)
    file_instance << (u,t)
    t += dt

Now I would like file_instance to be a file on a server where I have more space than on the cluster. Hence, I would like dolfin.File(REMOTE_PATH) to open a file on the remote server. Is this possible?
Your solution does not help there since it requires a local save first.

Sorry for being unclear, I hope someone can still help.

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sorry my weird "range(n)" notation was supposed to suggest a time-dependent problem.

Is your problem too large to save the solution for a single timestep locally?

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It is, yes. That's why I was wondering whether dolfin.File could open and access a remote file.

---

Ok sorry I can't be of any help then...