DPCT1075#
Note
This diagnostic message is no longer generated by Intel® DPC++ Compatibility Tool 2023.0 or later.
Message#
Migration of cuFFT calls may be incorrect and require review.
Detailed Help#
The warning is generated in the following cases:
In the original code one cuFFT handle may be associated with different streams, but Intel® DPC++ Compatibility Tool could not detect which stream was used by cuFFT calls.
In the migrated code one or more commit calls need to be used, but the Intel® DPC++ Compatibility Tool could not deduce how to generate the correct set of commit calls.
For example, this original CUDA* code:
1 cufftPlan1d(plan, ...);
2 cufftExecR2C(plan, ...); // this call is using default stream
3 cufftSetStream(plan, s2);
4 cufftExecR2C(plan, ...); // this call is using s2 stream
results in the following migrated SYCL* code:
1 /*
2 DPCT1075: Migration of cuFFT calls may be incorrect and requires review.
3 */
4 plan->commit(*s2); // wrong queue is used
5 ...
6 dft::compute_forward (...);
7 ... // missing commit call
8 dft::compute_forward(...);
which is manually adjusted to:
1 plan->commit(dpct::get_default_queue()); // using default queue
2 ...
3 dft::compute_forward (...);
4 ...
5 plan->commit(*s2); // added new commit call with *s2 queue
6 dft::compute_forward(...);
Suggestions to Fix#
Check that oneapi::mkl::dft::descriptor::commit()
calls were generated
correctly and are using the correct queue parameter. Fix the code if needed by
adding missing commit calls and adjusting queue parameters.
Refer to the descriptor<precision, domain>::commit function for more information.