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which reference the fields comm_rank and comm_size in the HC worker state. However, I got segfaults because no HC worker state existed as hcc had not generated any of the necessary code using ROSE. I solved this by adding a dummy finish scope in the program, indicating to the compiler that this was indeed HC code. hcc then correctly produced the auto-generated code for initializing the HC state.
Calling HC Functions From non-HC Code
When calling an HC function from non-HC code in separate files, the hcc compiler will not be able to resolve the function definition. This is a result of the name-mangling that HC does, which is not reflected in the original header files. As a result, when the final ROSE generated C file is compiled with the original calling C/C++, the compiler won't resolve the originally named function to the new HC-mangled one. The way to fix this is by adding
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#pragma hc continuable |
above the function declaration in the header file. And tada! Fixed. Credit to Vincent for teaching me this.