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- Transfer of updated parameters from server to workers is done through MPI_Bcast
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- The data sent for each of these operations are about 250 000 floats so about 1 Gb.
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- Accroding to [MN5 overview](https://www.bsc.es/supportkc/docs/MareNostrum5/overview), the transfer speed of a node is about 1Gb/s
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- We are using one socket per rank
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## Using 4 workers and 1 server
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| ... | ... | |
