Comments (4)
DTolm
commented on June 13, 2024
performR2C specifies that the transform is using Real data as input in forward transform and as output in inverse. It doesn't do r2c+c2r, that is done in benchmarks. To do c2r you have to call VkFFTAppend(app, 1, launchParams); - here 1 specifies the inverse direction, -1 would do r2c.
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zhaohaifei
commented on June 13, 2024
Thank you.
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zhaohaifei
commented on June 13, 2024
Why does the benchmark put c2r+r2c together? Is the performance of c2r and r2c the same? Is it the same for d2z and z2d?
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DTolm
commented on June 13, 2024
The performance of forward and inverse transforms is roughly the same for all algorithms. Having them both in the benchmark was the choice I made originally to keep track of it being the same after changes.
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Related Issues (20)
- WebGPU compute backend HOT 1
- Large errors using Intel OpenCL for CPUs HOT 8
- Allow complex transforms to use non-interleaved memory layouts (separate I and Q buffers) HOT 3
- Segmentation fault with 1.3.3 HOT 2
- Merge DCT and DST into DTT HOT 4
- [1.3.4] #include glslang_c_interface.h -> glslang/Include/glslang_c_interface.h HOT 1
- [1.3.4] Could you detect and use the system glslang via cmake HOT 1
- Support VK_KHR_push_descriptor to allow multiple invocations with different buffers in a single command buffer HOT 3
- initializeVkFFT throws an exception for small-size convolutions HOT 3
- Multiple systems - one kernel - multiple outputs convolution HOT 10
- in order to use VkFFT, my machine must have a Vulkan driver installed ? HOT 1
- how to dump the generated source kernel? HOT 6
- CUDA&HIP stream asynchronicity HOT 2
- Use enum for precision HOT 2
- Error module and new error handling HOT 2
- Allow HIP to be used with NVIDIA GPUs HOT 1
- [Metal] red herring
- Suggestion: add CITATION.cff HOT 1
- device function performing FFT/DCT of data in shared memory (feature request / feasability) HOT 1
- Creating Multiple VkFFTApplication plans HOT 4
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