Hi,
i'm new in PyCuda.
I should implement a cross-correlation in CUDA.
Doing this i encountered some problem. So i'm doing some basic samples.
For example, if i do this :
import pycuda.autoinit
import pycuda.driver as drv
import numpy
from pycuda.compiler import SourceModule
mod = SourceModule("""
__global__ void thread_index(float *dest)
{
int i = threadIdx.x;
dest[i]=i;
}
""")
lung_vett=10;
thread_index = mod.get_function("thread_index")
dest=numpy.zeros(lung_vett);
thread_index(drv.Out(dest),block=(lung_vett,1,1))
print dest
I expect that dest is like this: dest= [0,1,2,3,4,5,6,7,8,9,10].
But pycuda returns random number like this : [ 7.81250000e-003
3.20000076e+001 2.04800049e+003 3.27680079e+004
2.62144063e+005 1.76718726e+300 2.39291672e+300 1.11420383e+282
2.23435632e+297 7.47372270e+294].
I wrote the same script in C and the result is correct. That is to say : dest=
[0,1,2,3,4,5,6,7,8,9,10].
where is my error?
Excuse me for my horrible english but i'm an italian student.
Thank to all.
_______________________________________________
PyCUDA mailing list
[email protected]
http://lists.tiker.net/listinfo/pycuda
