This is a C implementation of a partitioned counter. An instance of the partitioned can be incremented by multiple threads simultaneously in a thread-safe way.
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'pc_init(pc_t *pc, int64_t *global_counter, uint32_t num_counters, int32_t threshold)': to initialize the counter.
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'pc_destructor(pc_t *pc)': to destroy the counter and free up resources.
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'pc_add(pc_t *pc, int64_t count)': to increment the counter by +count.
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'pc_sync(pc_t *pc)': to sync up partitioned counters.
To build on a Haswell or newer hardware:
$ make
$ ./test_pc 8The argument to 'test_pc' is the number of threads.
Contributions via GitHub pull requests are welcome.
- Prashant Pandey ppandey@cs.stonybrook.edu
- Rob Johnson rob@cs.stonybrook.edu