Description
If you use clEnqueueNDRangeKernel with the
global_work_offset set to NULL or all zeros, use this
attribute to tell the compiler that the global_work_offset
is always zero.
This attribute can improve memory performance when you have memory accesses like:
A[get_global_id(x)] = ...;Note: You can specify
REQD_WORK_GROUP_SIZE, VEC_TYPE_HINT, and XCL_ZERO_GLOBAL_WORK_OFFSET together to maximize
performance.
Syntax
Place this attribute before the kernel definition or the primary function specified for the kernel.
__kernel __attribute__((xcl_zero_global_work_offset))
void test (__global short *input, __global short *output, __constant short *constants) { }