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Why is FPGA Compilation Different?
Types of SYCL* FPGA Compilation
FPGA Compilation Flags
Emulate and Debug Your Design
Evaluate Your Kernel Through Simulation
Device Selectors for FPGA
FPGA IP Authoring Flow
Fast Recompile for FPGA
Generate Multiple FPGA Images (Linux only)
FPGA BSPs and Boards
Targeting Multiple Homogeneous FPGA Devices
Targeting Multiple Platforms
FPGA-CPU Interaction
FPGA Performance Optimization
Use of RTL Libraries for FPGA
Use SYCL Shared Library With Third-Party Applications
FPGA Workflows in IDEs
Simulation Prerequisites
Installing the Questa*-Intel FPGA Edition Software
Set Up the Simulation Environment
Compile a Kernel for Simulation
Simulate Your Kernel
Viewing Simulation Waveforms
Troubleshoot Simulator Issues
Windows Compilation or Run Fails
A socket=-11 Error Is Logged to transcript.log
Compatibility with Questa*-Intel FPGA Starter Edition Software
Environment Variable Not Set
Intel oneAPI DPC++ Library (oneDPL)
Intel oneAPI Math Kernel Library (oneMKL)
Intel oneAPI Threading Building Blocks (oneTBB)
Intel oneAPI Data Analytics Library (oneDAL)
Intel oneAPI Collective Communications Library (oneCCL)
Intel oneAPI Deep Neural Network Library (oneDNN)
Intel oneAPI Video Processing Library (oneVPL)
Other Libraries
Visible to Intel only — GUID: GUID-172B8695-CC75-441A-8028-8914C777ACDB
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Troubleshoot Simulator Issues
Review this section to troubleshoot simulator problems you might have when attempting to run a simulation.
Windows Compilation or Run Fails
On Windows, simulation might fail at compilation time or run time if you are running from a directory with a very long path. Use the -o compiler option to output your compilation results to a shorter path.
A socket=-11 Error Is Logged to transcript.log
If you receive the following error message, you might be mixing resources from multiple simulators, such as Questa*-Intel FPGA Edition and ModelSim* SE:
Message: "src/hls_cosim_ipc_socket.cpp:202: void IPCSocketMaster::connect():
Assertion `sockfd != -1 && "IPCSocketMaster::connect() call to accept() failed"' failed."An example of mixing simulator resources is compiling a device with ModelSim* SE and running the host program in Questa*-Intel FPGA Starter Edition.
Compatibility with Questa*-Intel FPGA Starter Edition Software
Questa*-Intel FPGA Starter Edition software has limitations on design size that prevent it from simulating large designs. When trying to launch a simulation using Questa*-Intel FPGA Starter Edition software, you may encounter the following error message:
Error: The simulator's process ended unexpectedly.Instead, simulate the designs with Questa*-Intel FPGA Edition or ModelSim* SE software.
Environment Variable Not Set
When you forget setting the CL_CONTEXT_MPSIM_DEVICE_INTELFPGA=1 environment variable, you might encounter an error message.
On Linux
terminate called after throwing an instance of 'sycl::_V1::runtime_error'
what(): No device of requested type available. Please check https://www.intel.com/content/www/us/en/developer/articles/system-requirements/intel-oneapi-dpcpp-system-requirements.html -1 (PI_ERROR_DEVICE_NOT_FOUND)
Aborted (core dumped)On Windows
The simulator might crash and you might see the following message in the debugger:
Unhandled exception at 0x00007FFD92DFDE4E (ucrtbase.dll) in <your exe>.exe: Fatal program exit requested.To overcome this issue, define the CL_CONTEXT_MPSIM_DEVICE_INTELFPGA=1 environment variable.