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POAnaconda's NumbaPro CUDA Assertion Error
 

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  1. POAnaconda's NumbaPro CUDA Assertion Error
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    <p>I am trying to use NumbaPro's cuda extension to multiply large array matrixes. What I want in the end is to multiply a matrix of size NxN by a diagonal matrix that would be fed in as a 1D matrix (thus, a.dot(numpy.diagflat(b)) which I have found to be synonymous to a * b). However, I am getting an assertion error that provides no information.</p> <p>I can only avoid this assertion error if I multiply two 1D array matrixes but that is not what I want to do.</p> <pre><code>from numbapro import vectorize, cuda from numba import f4,f8 import numpy as np def generate_input(n): import numpy as np A = np.array(np.random.sample((n,n))) B = np.array(np.random.sample(n) + 10) return A, B def product(a, b): return a * b def main(): cu_product = vectorize([f4(f4, f4), f8(f8, f8)], target='gpu')(product) N = 1000 A, B = generate_input(N) D = np.empty(A.shape) stream = cuda.stream() with stream.auto_synchronize(): dA = cuda.to_device(A, stream) dB = cuda.to_device(B, stream) dD = cuda.to_device(D, stream, copy=False) cu_product(dA, dB, out=dD, stream=stream) dD.to_host(stream) if __name__ == '__main__': main() </code></pre> <p>This is what my terminal spits out:</p> <pre><code>Traceback (most recent call last): File "cuda_vectorize.py", line 32, in &lt;module&gt; main() File "cuda_vectorize.py", line 28, in main cu_product(dA, dB, out=dD, stream=stream) File "/opt/anaconda1anaconda2anaconda3/lib/python2.7/site-packages/numbapro/_cudadispatch.py", line 109, in __call__ File "/opt/anaconda1anaconda2anaconda3/lib/python2.7/site-packages/numbapro/_cudadispatch.py", line 191, in _arguments_requirement AssertionError </code></pre>
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    1. COCan't you check `_cudadispatch.py` at line 191 to see what the assertion is exactly?
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      1. POAnaconda's NumbaPro CUDA Assertion Error
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    2. COUnfortunately it only exists as compiled version. When I uncompiled it, the line numbers were different but from what I can tell, harrism is correct that the error is being throw due to it not being a scalar input. I also want to note the only decompiler that worked was Decompyle++ found in response to this question[1]. Additionally, the file location was "~/anaconda/lib/..." and not "/opt/anaconda1anaconda2anaconda3/..." [1]: http://stackoverflow.com/questions/8189352/decompile-python-2-7-pyc
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    3. COAh, the joy of closed source libraries... Good luck then!
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