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== Sample CUDA application for instruction mix ==
Applies a Sobel filter to a image in global memory
and generates an output image in global memory.
Compiling the code:
==================
nvcc -lineinfo -gencode arch=compute_70,code=sm_70 -gencode arch=compute_72,code=sm_72 -gencode arch=compute_75,code=sm_75 -gencode arch=compute_80,code=sm_80 -gencode arch=compute_86,code=sm_86 -gencode arch=compute_87,code=sm_87 -gencode arch=compute_89,code=sm_89 instructionMix.cu -o instructionMix
Command line arguments (all are optional):
==========================================
1) <kernel option> Version of Sobel filter kernel to use
1 : double version of kernel
2 : float version of kernel
Default value: 1
2) <Image width> Image width should be greater than or equal to block size (BLOCK_SIZE - defined in source file "instructionMix.cu")
and must be an integral multiple of block size.
Default value: DEFAULT_IMAGE_SIZE (defined in source file "instructionMix.cu")
3) <Image height> Image height should be greater than or equal to block size (BLOCK_SIZE - defined in source file "instructionMix.cu")
and must be an integral multiple of block size.
Default value: Equal to image width
Sample usage:
============
- Use double precision floating point version of Sobel filter kernel with default image size
> ./instructionMix
- Use single precision floating point version of Sobel filter kernel with default image size
> ./instructionMix 2
- Use double precision floating point version of Sobel filter kernel with image size 1024 x 1024
> ./instructionMix 1 1024
- Use double precision floating point version of Sobel filter kernel with image size 1024 x 256
> ./instructionMix 1 1024 256
Profiling the sample using Nsight Compute command line
======================================================
- Profile the double precision floating point version of Sobel filter kernel
> ncu --set full --import-source on -o sobelDouble.ncu-rep ./instructionMix 1
- Profile the single precision floating point version of Sobel filter kernel
> ncu --set full --import-source on -o sobelFloat.ncu-rep ./instructionMix 2
The profiler report files for the sample are also provided and they can be opened in the
Nsight Compute UI using the "File->Open" menu option.
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