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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
<pkgmetadata>
<maintainer type="person">
<email>lssndrbarbieri@gmail.com</email>
<name>Alessandro Barbieri</name>
</maintainer>
<upstream>
<remote-id type="github">ECP-VeloC/rankstr</remote-id>
</upstream>
<longdescription lang="en">The rankstr (rank string) library provides functions that identify unique strings across an MPI communicator.
A key use case is to split a communicator into subcommunicators such that all processes in a resulting subcommunicator consist of those processes that provided an identical input string. rankstr_mpi_comm_split is a function like MPI_Comm_split, but it takes a variable-length string as the color argument insead of an integer value.
The rankstr_mpi function does not output a communicator, but instead returns a unique integer for each unique string.
For scalability, the implementation uses a distributed, bitonic sort via point-to-point messages over the input communicator to compare string values. The caller must provide two distinct tag values that are safe for the function to use for its point-to-point messages.
</longdescription>
</pkgmetadata>
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