Is autotuning a offline process?

Open discussion for MAGMA library (Matrix Algebra on GPU and Multicore Architectures)

Is autotuning a offline process?

Postby yuleigeng » Wed Aug 09, 2017 8:35 am

Hi, I read the paper "Performance, Design, and Autotuning of Batched GEMM for GPUs", several concept such as Search Space Generation and Pruning
and Autotuning output anaylsis. Are these kind of process offline? and the aim is to get the best kernel for specific case?
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Re: Is autotuning a offline process?

Postby haidar » Tue Aug 15, 2017 11:04 am

The current autotunning process is performed offline since it is done once per GPU type.
Thus we generate all acceptable kernel configuration and run them, and analyze the performance and choose the best for the target architecture.
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