Intel® FPGA SDK for OpenCL™ Pro Edition: Programming Guide

ID 683846
Date 9/26/2022

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8.10. Emulator Known Issues

A few known issues might affect your use of the emulator. Review these issues to avoid possible problems when using the emulator.

Autorun Kernels

Autorun kernels shut down only after a host program exits, not after a clReleaseProgram() call.

Compiler Diagnostics

Some compiler diagnostics are not yet implemented for the emulator.

CL_OUT_OF_RESOURCES Error Returned From clEnqueueNDRangeKernel()

This can occur when the kernel used more __private or __local memory than the emulator supports by default.

Try setting the CL_CONFIG_CPU_FORCE_PRIVATE_MEM_SIZE or the CL_CONFIG_CPU_FORCE_LOCAL_MEM_SIZE environment variables, as described in Emulator Environment Variables.

CL_INVALID_VALUE Error Returned From clCreateKernel()

It is possible a call to the clBuildProgram() was missed.

This call is required by the OpenCL specification, even if a program is created from a binary. See section 5.4.2 of the OpenCL Specification version 1.0 for details.