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This assignment will consist of the following parts: The multi - threaded sieve of the Eratosthenes program MPI benchmarks Answer these questions ( you can
This assignment will consist of the following parts:
The multithreaded sieve of the Eratosthenes program
MPI benchmarks
Answer these questions you can be as short or as detailed as you like:
a Where do you think the "sweet spot" is for thread count? Alternatively, at what point
does the addition of more threads result in diminishing returns?
b Where do you think the "sweet spot" is for workload size? Alternatively, at what
maximum value max value to search for prime numbers does it become beneficial to
run the sieve in parallel?
Answer this additional question with a few sentences: Between this and the OpenMPbased
sieve from the midterm, what can you say are the advantages and disadvantages of both
OpenMP and MPI? You may consider the following:
a Which was easiest to program?
b Which one requires or benefits from specific hardware?
You will be benchmarking the sieve made using MPI. Start with the following table, consisting of
entries. You may expand the table to include different thread counts or maximum values.
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