Hi,
I would like to exchange 2 pointer addresses of gpuarray. Here, this is
an example of what I want to do
"""
__global__ void computation(float *a, float *b)
{
// compute something with a and put the result in b
}
__global__ void exchange(float **a, float **b)
{
float *tmp;
tmp = *a;
*a = *b;
*b = tmp;
}
"""
Then I construct 2 gpuarrays and I call my first kernel easily.
kernel1 = mod.get_function("computation")
kernel2 = mod.get_function("exchange")
a_gpu = gpuarray.to_gpu(a)
b_gpu = gpuarray.to_gpu(b)
kernel1(a_gpu.gpudata, b_gpu.gpudata, ...)
kernel2( ????, ????, ...)
But I don't understand how to call the second kernel "exchange" to
change the addresses of my gpuarrays.
How can I get the address of a gpuarray and then how can I change it ?
Perhaps, there is a more simple way...
Thanks,
Loic
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