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beiwang2003's avatar
beiwang2003
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5 years ago

Error in using emulator mode with SDK 20.1 for hello_world example

I have quartus 19.2 and FPGA SDK 20.1. When trying to compile the OpenCL code with emulator mode: aoc -march=emulator -o ./bin/hello_world.aocx ./device/hello_world.cl, I had the following error mes...
beiwang2003's avatar
beiwang2003
Icon for New Contributor rankNew Contributor
5 years ago

Hi, Anil,

I've tried this by replacing the current Altera.icd file at /etc/OpenCL/vendors/ with the one at .../19.4/hld/Altera.icd. It is still the same error message during running:Context callback: Malformed program binary: missing .acl.board section

Thanks

Bei

AnilErinch_A_Intel's avatar
AnilErinch_A_Intel
Icon for Frequent Contributor rankFrequent Contributor
5 years ago

Hi,
It turns out that From version 19.4 onwards there are two options available

1. Legacy emulator

export CL_CONTEXT_EMULATOR_DEVICE_INTELFPGA=1

./host -legacy-emulator

2. If you want to use the fast emulator

export CL_CONFIG_CPU_EMULATE_DEVICES=1

./host -emulator

Please try both the options and let us know about the performance.

Thanks and Regards
Anil