Due to a problem in the Intel® FPGA SDK for OpenCL™ 17.0 and earlier for Windows®, you may see some errors when you run the emulator with a kernel which has a pipe.
Example of error messages:
Unhandled exception at 0x00007ffb532a5503 in host.exe: 0xC0000005: Access violation reading location 0x0000000000000081.