DPCT1035

Intel® DPC++ Compatibility Tool Developer Guide and Reference

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ID 768918

Date 11/07/2023

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Public

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DPCT1035

Message

All SYCL devices can be used by the host to submit tasks. You may need to adjust this code.

Detailed Help

In SYCL*, the host can freely submit tasks to all SYCL devices. There’s no need to check for device compute mode.

Suggestions to Fix

Review the code and adjust accordingly.

For example, this original CUDA* code:

 void foo(cudaDeviceProp deviceProp) {
   if (deviceProp.computeMode == cudaComputeModeDefault) {
     ... // code path 1
   } else if (deviceProp.computeMode == cudaComputeModeExclusive) {
     ... // code path 2
   } else if (deviceProp.computeMode == cudaComputeModeProhibited) {
     ... // code path 3
   }
 }

results in the following migrated SYCL code:

 void foo(dpct::device_info deviceProp) {
   /*
   DPCT1035:0: All SYCL devices can be used by the host to submit tasks. You may
   need to adjust this code.
   */
   if (true) {
     ... // code path 1
   /*
   DPCT1035:1: All SYCL devices can be used by the host to submit tasks. You may
   need to adjust this code.
   */
   } else if (false) {
     ... // code path 2
   /*
   DPCT1035:2: All SYCL devices can be used by the host to submit tasks. You may
   need to adjust this code.
   */
   } else if (false) {
     ... // code path 3
   }
 }

which is rewritten to:

 void foo(dpct::device_info deviceProp) {
   ... // code path 1
 }

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Intel® DPC++ Compatibility Tool Developer Guide and Reference

DPCT1035

Message

Detailed Help

Suggestions to Fix