Intel® DPC++ Compatibility Tool Developer Guide and Reference
A newer version of this document is available. Customers should click here to go to the newest version.
DPCT1075
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:
cufftPlan1d(plan, ...);
cufftExecR2C(plan, ...); // this call is using default stream
cufftSetStream(plan, s2);
cufftExecR2C(plan, ...); // this call is using s2 streamresults in the following migrated SYCL* code:
/*
DPCT1075:0: Migration of cuFFT calls may be incorrect and requires review.
*/
plan->commit(*s2); // wrong queue is used
...
dft::compute_forward (...);
... // missing commit call
dft::compute_forward(...);which is manually adjusted to:
plan->commit(dpct::get_default_queue()); // using default queue
...
dft::compute_forward (...);
...
plan->commit(*s2); // added new commit call with *s2 queue
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.