How to

SKAL_H_ — Sat, 19 Apr 2014 14:26:26 GMT

for example, I have

#pragma offload nocopy(a)
{
  a = malloc(sizeof(double)*ny*nx);
}

And now I want to initialize its first k lines from the data from Host

I can do something like:

inout = malloc(sizeof(double)*k*nx);
memcpy(inout, a, k*nx*sizeof(double));
#pragma offload in(inout: length(k*nx) alloc_if(1) free_if(1)) nocopy(a) in(nx, k)
{
 memcpy(a, inout, k * nx * sizeof(double));
}

Is there any way to avoid the temporary pointer `inout' ?

Thanks

This is probably easier done

Kevin_D_Intel — Sun, 20 Apr 2014 11:09:15 GMT

This is probably easier done using INTO and having the offload manage the memory allocation. There is an outline of an example that demonstrates your interest under the topic Minimize Coprocessor Memory Allocation Overhead on the Effective Use of the Intel Compilers Offload Features page.
Let me know whether this helps.

topic How to in Software Archive

How to

This is probably easier done