Red Hat Bugzilla – Bug 1294200
Ship version using ILP64 BLAS
Last modified: 2017-08-16 07:35:26 EDT
It is becoming more and more common to encounter very large sparse matrices whose dimensions can exceed the maximum value fitting in a 32-bit integer. For this reason, some projects have switched to an ILP64 BLAS. OpenBLAS in Fedora has shipped it for some time (Bug 1088256), and has just started shipping an alternative ILP64 version with all symbols suffixed with "64_" in order to allow a process to also load libraries built against an LP64 BLAS without conflicts (Bug 1287541).
As I've just switched my Julia package to the ILP64 OpenBLAS, I'd like to be able to use a SuiteSparse version based on ILP64 OpenBLAS too. Would you be willing to create an alternative version of SuiteSparse packages for that? The "-DSUN64" flag already exists in SuiteSparse to make use of the "64_" suffixes.
Also, would it possible to build suitesparse without being directly linked to a BLAS library so a downstream user could choose?
This bug appears to have been reported against 'rawhide' during the Fedora 24 development cycle.
Changing version to '24'.
More information and reason for this action is here:
Bump! Any chance you would accept such a change? Should I provide a patch?
I'm not directly assign to this BZ, but I think requests in comment 0 and comment 1 are reasonable, and makes sense.
(In reply to Milan Bouchet-Valat from comment #3)
> Should I provide a patch?
I think this will not hurt anything. It might speed up things actually.
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