printf question

[zjin-lcf]

It is not clear why printf is not supported in DPC++. printf is supported in DPC++ with CUDA support.

Addressing Warnings in Migrated Code Migration generated one warning for code that dpct could not migrate:

warning: DPCT1015:0: Output needs adjustment. As you have noticed, the migration of this project resulted in one DPCT message that needs to be addressed, DPCT1015. This message is shown because as the Compatibility Tool migrated from the printf-style formatted string in the CUDA code to the output stream supported by DPC++, manual adjustment is needed to generate the equivalent output.

Open result/foo/bar/util.dp.cpp and locate the error DPCT1015. Then make the following changes:

Change:

stream_ct1 << "kernel_util,%d\n"; to

stream_ct1 << "kernel_util," << c << sycl::endl; You’ll also need to change the stream statement in result/foo/main.dp.cpp.

Change:

stream_ct1 << z"kernel_main!\n"; to

stream_ct1 << "kernel_main!" << sycl::endl;