Support for dimension expansion is actually restricted to the GPU version of
arrayfun
, and GPU Coder supports the CPU version's syntax. So the answer is no, it doesn't support dimension expansion.
如果没有GPU编码器支持金宝appngleton expansion of ARRAYFUN?
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I have a question about SINGLETON EXPANSION for ARRAYFUN on GPU.
For gpuArrays, @times with ARRAYFUN and direct calculation on M-file both work fine.
However, MEX generated by GPU Coder from a code using ARRAYFUN does not seem to perform SINGLETON EXPANSION well.
Doesn't the GPU Coder support SINGLETON EXPANSION of ARRAYFUN?
Shogo MURAMATSU
Sample code
functionY = arrayfuntest(m,X)%#codegen
Y = arrayfun(@times,m,X);
%Y = m.*X;
end
Code generation for ARRAYFUN
Code generation for a direct operation
Preparation of arrays
m = gpuArray(single([1;-1;1]))
X = gpuArray(rand(3,'single'))
Execution with M-file
Y = arrayfuntest(m,X)
MEX Generation
cfg = coder.gpuConfig('mex');
nChs = 64;
datatype ='single';
aM = coder.typeof(gpuArray(cast(0,datatype)),[nChs 1],[1 0]);
aX = coder.typeof(gpuArray(cast(0,datatype)),[nChs nChs],[1 1]);
cfg.DynamicMemoryAllocation ='Off';
cfg.GenerateReport = true;
codegen-config cfg -o arrayfuntest_mex arrayfuntest.m -args { aM, aX }
Execution with MEX-file
Y = arrayfuntest_mex(m,X)
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