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Debugging CUDA can be a challenge on Windows. When a program crashes due to invalid memory access, the NSight debugger does not show where the error occurs. All CUDA threads are exited and no output is produced. You can try to use printf within the CUDA kernel to narrow down where and why the kernel …
Continue reading “Debugging invalid memory access in CUDA programs on Windows”
Patterns in Piggy are regular expressions of parenthesized expressions that represent trees. The conversion of the regular expressions to a finite state automaton is easy (via Thompson’s Construction), but the resulting automaton for the pattern may not work for an important reason: patterns that specify attributes and children of an AST node have an implicit …
Continue reading “Rewriting the pattern matching engine — part 2”
This is the next entry in the series on program transformation systems. This article describes ROSE, a compiler system for C, C++, Java, Python, PHP source code. It has been in development since 2000 and is actively being developed to this day. ROSE was developed at the Lawrence Livermore National Laboratory.
This is the next entry in the series on program transformation systems. This article describes Spoon, a system for Java source code. It has been in development since 2005 and is actively being developed to this day.