cuda-samples/bin/x86_64/linux/release/APM_convolutionFFT2D.txt

[./convolutionFFT2D] - Starting...
GPU Device 0: "Hopper" with compute capability 9.0

Testing built-in R2C / C2R FFT-based convolution
...allocating memory
...generating random input data
...creating R2C & C2R FFT plans for 2048 x 2048
...uploading to GPU and padding convolution kernel and input data
...transforming convolution kernel
...running GPU FFT convolution: 33613.444604 MPix/s (0.119000 ms)
...reading back GPU convolution results
...running reference CPU convolution
...comparing the results: rel L2 = 9.395370E-08 (max delta = 1.208283E-06)
L2norm Error OK
...shutting down
Testing custom R2C / C2R FFT-based convolution
...allocating memory
...generating random input data
...creating C2C FFT plan for 2048 x 1024
...uploading to GPU and padding convolution kernel and input data
...transforming convolution kernel
...running GPU FFT convolution: 29197.081461 MPix/s (0.137000 ms)
...reading back GPU FFT results
...running reference CPU convolution
...comparing the results: rel L2 = 1.067915E-07 (max delta = 9.817303E-07)
L2norm Error OK
...shutting down
Testing updated custom R2C / C2R FFT-based convolution
...allocating memory
...generating random input data
...creating C2C FFT plan for 2048 x 1024
...uploading to GPU and padding convolution kernel and input data
...transforming convolution kernel
...running GPU FFT convolution: 39603.959017 MPix/s (0.101000 ms)
...reading back GPU FFT results
...running reference CPU convolution
...comparing the results: rel L2 = 1.065127E-07 (max delta = 9.817303E-07)
L2norm Error OK
...shutting down
Test Summary: 0 errors
Test passed