[PD-dev] CUDA discussion

Charles Henry czhenry at gmail.com
Tue Nov 3 17:29:20 CET 2009


> (proposed) incremental milestones:
> 1.  Create an external that checks GPUs and hands back error messages to Pd.
> 2.  Create an external that initializes GPUs.
> 3.  Create an external that performs host<->device memory transfer and
> runs an operation.
> 4.  Create an external that performs an operation and compares the
> time it takes against the same operation on CPU.  At this point, it
> should be possible to identify and hopefully quantify the potential
> speedup on GPU, and decide whether or not it is worth it.

add:
5.  Create an external that accepts *in as a pointer to host memory,
and returns as *out a pointer to gpu memory.
6.  Create an external that accepts *in as a pointer to gpu memory,
and returns as *out a pointer to host memory.
7.  Create an external that performs an operation in gpu memory and
returns a pointer to gpu memory without any host<->gpu memory
transfers.




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