openacc - Launching a kernel within a kernel -

isn't nested parallelism , doesn't pgi 17. support this? please let me know if code correct?

#include <openacc.h> #include <stdio.h> #include <stdlib.h>  int main(int argc, char *argv[]) {     int n = 20;     int* array = (int*) malloc(n * n * sizeof(int));      #pragma acc kernels loop     for(int = 0; < n; i++ )     {          #pragma acc kernels loop         for(int j = 0; j< n; j++)         {             array[i*n + j] = 1;         }     }      (int = 0; < n; ++i) {         (int j = 0; j < n; ++j) {             printf("%d ", array[i*n + j]);         }         puts("");     }     printf("res: %d\n", res);     return 0; } 

this how compiled it:

pgcc -acc -ta=tesla -minfo=accel test.c -o test

these errors:

pgc-s-0155-nested #pragma acc kernels loop ignored (test.c: 14) pgc-s-0155-illegal context #pragma acc kernels loop (test.c: 14) pgc-s-0039-use of undeclared variable res (test.c: 27) pgc/x86-64 osx 16.10-0: compilation completed severe errors