#14389: Multithreaded multiplication for algebras with basis
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Reporter: elixyre | Owner: nthiery
Type: task | Status: new
Priority: major | Milestone: sage-5.9
Component: categories | Resolution:
Keywords: product multiplication multithread | Work issues:
Report Upstream: N/A | Reviewers:
Authors: Jean-Baptiste Priez | Merged in:
Dependencies: | Stopgaps:
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Comment (by nthiery):
Salut!
Great idea. And very natural once you think about it.
I don't think this should be activated by default though. For simple
product rules, or when there is a cache on the product on basis, this
most likely induces a regression. On the other hand, this suggests
that it should be possible to easily configure at least to options for
products in an algebra with basis:
- Whether to cache the product on the basis
- Whether to use parallelism
There just remains to find and implement a good idiom :-)
On a technical note: it might be better to move the implementation of
the @parallel-decorated method outside of the body of the methods to
avoid recreating them each time. I am not sure as well of the logic to
handle _multiply_on_basis (but that could be an occasion to finally
deprecate it).
Cheers,
Nicolas
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/14389#comment:1>
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