DPCT1088
Message
The macro definition has multiple migration results in the dimension of free
queries function that could not be unified. You may need to modify the code.
Detailed Help
The Intel® DPC++ Compatibility Tool was unable to migrate the code correctly. You need to
modify the code manually.
For example, this original code:
// original code:
#define TB(x) cg::thread_block x = cg::this_thread_block()
__global__ void kernel1() {
int id = threadIdx.x;
TB(a);
}
__global__ void kernel3() {
int id = threadIdx.z;
TB(b);
}migrated with options
--assume-nd-range-dim=1
and
--use-experimental-features=free-function-queries
, results in the following
migrated DPC++ code:#define TB(x) auto x = sycl::this_group< Placeholder /* Fix the dimension manually */>()
// It should be this_group<1>() when used in kernel1 and this_group<3>() when used in kernel3
void kernel1() {
int id = sycl::this_nd_item<1>().get_local_id(0);
TB(a);
}
void kernel3() {
int id = sycl::this_nd_item<3>().get_local_id(0);
TB(b);
}which is manually adjusted to:
// fixed DPC++ code:
#define TB(x, dimensions) auto x = sycl::this_group< dimensions >()
void kernel1() {
int id = sycl::this_nd_item<1>().get_local_id(0);
TB(a, 1);
}
void kernel3() {
int id = sycl::this_nd_item<3>().get_local_id(0);
TB(b, 3);
}Suggestions to Fix
Rewrite the code manually.