I'm using PGI to compile the following program which uses OpenMP's target directives to offload work to a GPU:
#include <iostream>
#include <cmath>
int main(){
const int SIZE = 400000;
double *m;
m = new double[SIZE];
#pragma omp target teams distribute parallel for
for(int i=0;i<SIZE;i++)
m[i] = std::sin((double)i);
for(int i=0;i<SIZE;i++)
std::cout<<m[i]<<"\n";
}
My compilation string is as follows:
pgc++ -omp -ta=tesla,pinned,cc60 -Minfo=accel -fast test2.cpp
Compilation succeeds, but it lacks the series of outputs that I get with OpenACC that tell me what the compiler actually did with the directive, like so:
main:
8, Accelerator kernel generated
Generating Tesla code
11, #pragma acc loop gang, vector(128) /* blockIdx.x threadIdx.x */
8, Generating implicit copyout(m[:400000])
How can I get similar information for OpenMP? -Minfo
by itself didn't seem to yield anything useful.