About time required for launching MAGMA kernels in host

Open discussion for MAGMA library (Matrix Algebra on GPU and Multicore Architectures)
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About time required for launching MAGMA kernels in host

Post by lakenear » Mon Dec 03, 2018 4:22 am

Hello everyone.

I am using MAGMA library, magma_dgels_gpu in more details, for obtaining least square solutions of an equation, 'Ax=b'.

During a profiling process of my algorithm, I have found that there is unignorable latency for launching MAGMA kernel, magm_dgels_gpu as shown in the attached file.

With regard to the mentioned issue above, I came up with two questions and hoped if I can have some advice thankfully.

1. Would there be any way of reducing the time for launching MAGMA kernel?

2. Can MAGMA kernel be called in device kernels by means of 'dynamic parallelism'?

Thank you for your help and time.

Best regards.
Inkednvvp capture_LI.jpg
Capture for NVVP profiling result
Inkednvvp capture_LI.jpg (262.04 KiB) Viewed 4618 times

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