[petsc-dev] preallocation on GPU

[Jed Brown]

mary sweat <mary.sweat78 at yahoo.it> writes:

> Hi all
> are there any functions such as MatSeqAIJSetPreallocation to
> preallocate MatSeqAIJCusp and MatMPIAIJCusp matrices? 

Yeah, it's name is MatSeqAIJSetPreallocation, just like the CPU version.
Matrix assembly is an irregular process that currently happens on the
CPU and is copied to the GPU.  The insertion itself is generally not a
bottleneck.
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