DPCT1060

Intel® DPC++ Compatibility Tool Developer Guide and Reference

Download PDF

ID 768918

Date 7/13/2023

Version

Public

A newer version of this document is available. Customers should click here to go to the newest version.

Visible to Intel only — GUID: GUID-FC536050-4361-4130-8534-09501BA1106C

View Details

DPCT1060

Message

SYCL range can only be a 1D, 2D, or 3D vector. Adjust the code.

Detailed Help

This warning is emitted when the number of dimensions of memory in the original code exceeds 3. Since SYCL* range supports only 1, 2 or 3 dimensions, the resulting code is not SYCL-compliant.

To fix the resulting code you can use the low-dimensional arrays to simulate high-dimensional arrays.

The following fix example demonstrates how to use a 3D array to simulate a 4D array.

The following migrated SYCL code:

  dpct::constant_memory<int, 4> array(dimX, dimY, dimZ, dimW);
  void kernel(sycl::id<1> idx,
              dpct::accessor<int, dpct::constant, 4> const_array) {
    ...
        ... = const_array[x][y][z][w];
    ...
  }

is manually adjusted to:

  dpct::constant_memory<int, 3> array(dimX, dimY, dimZ * dimW);
  void kernel(sycl::id<1> idx,
              dpct::accessor<int, dpct::constant, 3> const_array) {
    ... = const_array[x][y][w * dimZ + z];
    ...
  }

Suggestions to Fix

You may need to rewrite this code.

Select Your Language

Using Intel.com Search

Quick Links

Recent Searches

Advanced Search

Only search in

Intel® DPC++ Compatibility Tool Developer Guide and Reference

DPCT1060

Message

Detailed Help

Suggestions to Fix