On Freitag 04 Dezember 2009, you wrote: > Hi Andreas - > As part of my work to get host cuda functions compilable through PyCUDA, > I've needed to come up with a mechanism for creating GPUArrays from device > pointers produced by host functions. I've been able to do that, but only > by commenting out an assertion in gpuarray.py on line 89: if gpudata is > None: > ... > else: > self.gpudata = gpudata > assert base is not None <---- > > What is GPUArray.base for, and if we really need it, what data is expected > there? I can't find GPUArray.base being used anywhere in the PyCUDA code > base.
Same as numpy.base--its sole purpose is to establish lifetime dependencies. Say you create an array A that's a view of another array B (a slice, say). Then you'd very much like B to not be destroyed before A. HTH, Andreas
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