[firedrake] Installing Firedrake on an HPC machine

[Lawrence Mitchell]

Hi Justin,
> On 6 Aug 2015, at 16:44, Justin Chang <jychang48 at gmail.com> wrote:
> 
> Okay, that's fine. Again thank you very much for all your help.

Can you please try with the "prefork-everywhere" branches of firedrake and PyOP2?

If you're using checkouts of firedrake and PyOP2 do:

git fetch origin
git checkout prefork-everywhere

in both firedrake and PyOP2, and to be safe, rebuild the extension modules:

In PyOP2:

make ext

In firedrake:

make clean all


Alternately, if you've installed them via pip do the normal pip install except:

pip install git+https://github.com/OP2/PyOP2.git@prefork-everywhere#egg=PyOP2
pip install git+https://github.com/firedrakeproject/firedrake.git@prefork-everywhere#egg=firedrake


On my system having installed a handler like OpenMPI does to check if I'm calling fork after MPI initialisation, I get no output when running firedrake programs, indicating that I'm not forking in an MPI process.


Hope this solves the problem!

Cheers,

Lawrence
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