astro-informatics / purify

Next-generation radio interferometric imaging.

https://astro-informatics.github.io/purify

GNU General Public License v2.0

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sorting and distributing visibilities using multiple nodes #169

Closed Luke-Pratley closed 5 years ago

Luke-Pratley commented 6 years ago

142 Need to implement a send and receive, and sort for vis_params.

We can't fit all the data on one node. How it is distributed can greatly impact performance. This means we would have to sort and distribute from multiple nodes.

Probably need this https://www.mpich.org/static/docs/v3.2/www3/MPI_Sendrecv.html

Luke-Pratley commented 6 years ago

This was done using an All_To_All operation, but on a different fork. Will include with wide field imaging code at some point.