Hi,
The documentation does not discuss whether gsl_integration_workspace is
reusable. Is it? For example, can one allocate a single workspace, and use
that to do two different integrations afterwards? Some of our tests with
gsl-1.14 indicate that the answer is 'no'. But is there perhaps a way to
clear the workspace before using it again (and save on allocation time
that way)? Or is there reusablity at least in the sense that one can redo
the same integral at higher accuracy, using the same workspace and
integrand function, and save time in the process because partial results
are already in the workspace?
If the workspace is not reusable in any sense, why is it advantageous to
require passing a workspace to the integration routines, instead of
workspace size (a pure integer)? Since in this case one would anyway have
to allocate a workspace for every single integration, and of course free
it afterwards, which the integration routines could then just do
automatically and invisibly.
Denes
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