c++ Programming Glossary: pragmas
Why openmp program only runs in one thread http://stackoverflow.com/questions/10203902/why-openmp-program-only-runs-in-one-thread is num_threads 4 not num_thread 4 . Incorrect openmp pragmas are ignored and so you ended up with a sequential program. I'm..
Can code that is valid in both C and C++ produce different behavior when compiled in each language? http://stackoverflow.com/questions/12887700/can-code-that-is-valid-in-both-c-and-c-produce-different-behavior-when-compile related which means no hacks with #ifdef __cplusplus pragmas etc. Anything implementation defined is the same in both languages..
Compilation fails with OpenMP on Mac OS X Lion (memcpy and SSE intrinsics) http://stackoverflow.com/questions/12932107/compilation-fails-with-openmp-on-mac-os-x-lion-memcpy-and-sse-intrinsics and exiting the parallel region. You can use OpenMP pragmas inside func they will work because of the dynamic scoping of..
How to disable #pragma warnings? http://stackoverflow.com/questions/132667/how-to-disable-pragma-warnings
C++ Class or Struct compatiblity with C struct http://stackoverflow.com/questions/1429440/c-class-or-struct-compatiblity-with-c-struct you may need to adjust the structure packing usually with pragmas to ensure compatibility. edit Also you must take care to check..
C++ class, its base class and circular include includes http://stackoverflow.com/questions/1655096/c-class-its-base-class-and-circular-include-includes still doing work even if it has optimisations for guards pragmas. You do need to have some understanding of what depends on what..
How to speed up my sparse matrix solver? http://stackoverflow.com/questions/2388196/how-to-speed-up-my-sparse-matrix-solver the beginning. Parallelizing over 4 cores using OpenMP pragmas. I have to change to the Jacobi algorithm to avoid reads from..
Best compiler warning level for C/C++ compilers? http://stackoverflow.com/questions/399850/best-compiler-warning-level-for-c-c-compilers default Wswitch enum Wtrigraphs Wuninitialized Wunknown pragmas Wunreachable code Wunused Wunused function Wunused label Wunused..
How to supress specific warnings in g++ http://stackoverflow.com/questions/487108/how-to-supress-specific-warnings-in-g warnings. In gcc the closest you can have is diagnostic pragmas which let you enable disable certain types of diagnostics for..
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