diff options
Diffstat (limited to 'kernels/compiler_time_stamp.cl')
| -rw-r--r-- | kernels/compiler_time_stamp.cl | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/kernels/compiler_time_stamp.cl b/kernels/compiler_time_stamp.cl new file mode 100644 index 00000000..f66da58d --- /dev/null +++ b/kernels/compiler_time_stamp.cl @@ -0,0 +1,28 @@ +__kernel void +compiler_time_stamp(__global int *src, __global int *dst) +{ + int i; + int final[16]; + struct time_stamp t1, t2, t3; + t1 = __gen_ocl_get_timestamp(); + for (i = 0; i < 16; ++i) { + int array[16], j; + for (j = 0; j < 16; ++j) + array[j] = get_global_id(0); + for (j = 0; j < src[0]; ++j) + array[j] = 1+src[j]; + final[i] = array[i]; + if(i == 7) + t2 = __gen_ocl_get_timestamp(); + } + t3 = __gen_ocl_get_timestamp(); + // currently printf does not support long type. + // printf("tmEvt %d %d %d tmDiff %lu %lu\n", t3-t1, t2-t1); + + // time_stamp.event maybe not zero, then the time diff is not accurate, + // because a time event occurs before the time stamp. + printf("tmEvt %d %d %d tmDiff %u %u\n", t1.event, t2.event, t3.event, + (uint)(t3.tick-t1.tick), (uint)(t2.tick-t1.tick)); + + dst[get_global_id(0)] = final[get_global_id(0)]; +} |