Hi all
How to dynamically allocate local buffer space in kernel? I need a buffer space to process data within kernel function. something like this
global mykerenl(float data1, float data2)
{
…
int size = …; //calculate buffer size
float buf = …// to allocate buffer size based on some calculation. similar as buf = (float)malloc(size*sizeof(float))
… //use the buffer
free(buf);
}
My reading is I could use shared memory but I must know the size upfront. That is not dynamic
global mykerenl(float data1, float data2)
{
__shared __ float buf[];
...
}
when called, use third parameter
int bufferSize = …;//calculate size first.
mykerenl<<<thread, block, bufferSize>>>( data1, data2);
Any suggestion?
Thanks