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Stash compiled kernels on the form to save recompiling #248

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Merged
wence- merged 1 commit into from
Apr 10, 2014
Merged

Stash compiled kernels on the form to save recompiling #248

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14 changes: 5 additions & 9 deletions firedrake/solving.py
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Original file line number Diff line number Diff line change
Expand Up @@ -388,17 +388,13 @@ def _assemble(f, tensor=None, bcs=None):

"""

# We stash the form and kernels on the tensor if we reassemble for an
# existing tensor, to save having to compile the form again if identical
# Note that forms override == to construct an equation, so we have to
# explicitly test for object identity
if getattr(tensor, "_form", None) is f and hasattr(tensor, "_kernels"):
kernels = tensor._kernels
# We stash the compiled kernels on the form so we don't have to recompile
# if we assemble the same form again
if hasattr(f._form_data, "_kernels"):
kernels = f._form_data._kernels
else:
kernels = compile_form(f, "form")
if tensor:
tensor._form = f
tensor._kernels = kernels
f._form_data._kernels = kernels

fd = f.form_data()

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