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gmtst(1) [debian man page]

gmtst(1)						       Scotch user's manual							  gmtst(1)

NAME
gmtst - compute statistics on mappings SYNOPSIS
gmtst [options] [gfile] [tfile] [mfile] [lfile] DESCRIPTION
The gmtst program computes, in a sequential way, statistics on a static mapping, such as load imbalance ratio, edge dilation distribution, etc. It yields the same results as the ones produced by the -vm option of the gmap(1) program. Source graph file gfile can only be a centralized graph file. File tfile represents the target architecture onto which gfile was mapped. If mapping file mfile was produced by gpart(1), the target architecture file to provide gmtst should describe a complete graph with the same number of vertices as the requested number of parts, for instance by means of the 'cmplt num' algorithmically-described architecture. The resulting statistics are stored in file lfile. When file names are not specified, data is read from standard input and written to standard output. Standard streams can also be explicitly represented by a dash '-'. When the proper libraries have been included at compile time, gtst can directly handle compressed graphs, 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.grf.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). OPTIONS
-h Display some help. -V Display program version and copyright. EXAMPLES
Display statistics on mapping brol.map of graph brol.grf onto target architecture brol.tgt: $ gmtst brol.grf brol.tgt brol.map Display statistics on partitioning brol.map of graph brol.grf into num parts. Note the use of the complete graph algorithmically-described architecture and of the shell pipe command to provide the complete target architecture description on the standard input of the gmtst com- mand: $ echo "cmplt num" | gmtst brol.grf - brol.map SEE ALSO
gmap(1), gout(1), gtst(1). Scotch user's manual. AUTHOR
Francois Pellegrini <francois.pellegrini@labri.fr> February 14, 2011 gmtst(1)

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dgtst(1)						      PT-Scotch user's manual							  dgtst(1)

NAME
dgtst - test the consistency of source graphs in parallel SYNOPSIS
dgtst [options] [gfile] [lfile] DESCRIPTION
The dgtst program checks, in a parallel way, the consistency of a Scotch source graph and, in case of success, outputs some statistics regarding edge weights, vertex weights, and vertex degrees. It produces the very same results as the gtst(1) program of the Scotch sequential distribution, but unlike this latter it can handle dis- tributed graphs. Source graph file gfile is either a centralized graph file, or a set of files representing fragments of a distributed graph. The resulting statistics are stored in file lfile. When file names are not specified, data is read from standard input and written to standard output. Standard streams can also be explicitly represented by a dash '-'. When the proper libraries have been included at compile time, dgtst can directly handle compressed graphs, 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.grf.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). dgtst bases on implementations of the MPI interface to spread work across the processing elements. It is therefore not likely to be run directly, but instead through some launcher command such as mpirun. OPTIONS
-h Display some help. -rpnum Set root process for centralized files (default is 0). -V Display program version and copyright. EXAMPLE
Run dgtst on 5 processing elements to test the consistency of graph brol.grf $ mpirun -np 5 dgtst brol.grf Run dgord on 5 processing elements to test the consistency of a distributed graph stored on graph fragment files brol5-0.dgr to brol5-4.dgr, and save the resulting ordering to file brol.ord (see dgscat(1) for an explanation of the '%p' and '%r' sequences in names of distributed graph fragments). $ mpirun -np 5 dgtst brol%p-%r.dgr brol.ord SEE ALSO
dgscat(1), gtst(1), dgord(1). PT-Scotch user's manual. AUTHOR
Francois Pellegrini <francois.pellegrini@labri.fr> February 14, 2011 dgtst(1)
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