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amk_grf - Online in the Cloud

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This is the command amk_grf that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


amk_grf - create target architecture from source graph

SYNOPSIS


amk_grf [options] [gfile] [tfile]

DESCRIPTION


The amk_grf program builds a decomposition-defined target architecture tfile from a source
graph gfile.

Target architectures define the topology of the target graphs used by static mapping
programs gmap(1) and dgmap(1). Target architectures can be either algorithmically-defined,
for common, regular topologies, or decomposition-defined, such as the ones produced by
amk_grf.

When the proper libraries have been included at compile time, amk_grf can directly handle
compressed files, both as input and output. A stream is treated as compressed whenever its
name is postfixed with a compressed file extension, such as in 'brol.tgt.bz2' or '-.gz'.
The compression formats which can be supported are the bzip2 format ('.bz2'), the gzip
format ('.gz'), and the lzma format ('.lzma', on input only).

Since decomposition-defined target architecture files have a size which is quadratic in
the number of target vertices, because of the presence of a distance matrix structure,
using compressed files to store them may save a lot of space.

OPTIONS


-bstrat
Apply bipartitioning strategy strat to compute the recursive bipartition of the
whole source graph into smaller target subdomains.

-h Display some help.

-llfile
Only keep vertices the indices of which belong to the space-separated list stored
in lfile. This allows one to create target architectures which can even be disjoint
subsets of a larger target architecture, modeled as a graph.

-V Display program version and copyright.

EXAMPLE


Create a decomposition-defined target architecture from a 2D regular grid source graph of
dimension 3 times 5, and save it, as a compiled target architecture, under the gzip(1)
format, to file 'm3x5.tgt.gz'.

$ gmk_m2 3 5 | amk_grf | acpl - m3x5.tgt.gz

Note that, in this precise case, it would be much preferable to use directly the 'mesh2D'
algorithmically-defined target architecture.

$ echo "mesh2D 3 5" > m3x5.tgt

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