DPCT1090

Intel® DPC++ Compatibility Tool Developer Guide and Reference

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ID 768918

Date 3/22/2024

Version

Public

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DPCT1090

Message

SYCL does not support the device property that would be functionally compatible with <property name>. It was not migrated. You need to rewrite the code.

Detailed Help

Not all CUDA* device properties have functionally compatible equivalents in SYCL*. These device properties are not migrated.

Suggestions to Fix

Review and rewrite the code manually.

For example, this original CUDA* code:

void foo(int t) {
  cudaDeviceProp properties;
  cudaGetDeviceProperties(&properties, 0);
  int a = properties.regsPerBlock;
  if (a < t)
    code path 1
  else
    code path 2
}

results in the following migrated SYCL code:

void foo() {
  dpct::device_info properties;
  dpct::get_device_info(properties, dpct::dev_mgr::instance().get_device(0));
  /*
  DPCT1090:0: SYCL does not support the device property that would be
  functionally compatible with regsPerBlock. It was not migrated. You need to
  rewrite the code.
  */
  int a = properties.regsPerBlock;
  if (a < t)
    code path 1
  else
    code path 2
}

which is rewritten to:

void foo() {
  dpct::device_info properties;
  dpct::get_device_info(properties, dpct::dev_mgr::instance().get_device(0));

  // You need apply code path1 or path2 depending on the num of registers available on
  // the target hardware.
  code path 1/2
}

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Intel® DPC++ Compatibility Tool Developer Guide and Reference

DPCT1090

Message

Detailed Help

Suggestions to Fix