Description
Warning: [HLS 214-348] Cannot apply
performance pragma target_ti=50 cycles for loop 'VITIS_LOOP_10_3' in function 'top'.
The target requires a pipeline II less than the minimal achievable II of 1
determined by the number of accesses on external memory 'b' (1 per iteration), the
number of accesses on external memory 'a' (1 per iteration) (test.cpp:11:9).
Explanation
There are too many accesses to the specified external memory and this prevents an II=1 from being achieved. Consider reducing the number of accesses to the memory in one cycle or increasing the number of memory ports.
//////////// ORIGINAL ////////////
void top(int a[100][100],
int b[10000][100]) {
int k;
int i;
int j;
for (i = 0; i < 100; i++) {
for (k = 0; k < 100; k++) {
for (j = 0; j < 100; j++)
#pragma HLS performance target_ti=50
a[i][j] = b[i*k][j]+ b[i + k][j];
}
}
}