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- Directory: pvm3/gexamples
-
- This directory contains several example programs for using dynamic group
- services. The following is a list with short descriptions of what each
- program illustrates:
-
- frsg.f - Fortran example of reduce, scatter, and gather operations.
- Sum of sqaures for first N integers. N defaults to
- 20 with 4 processors if frsg is spawned from the console.
-
- Synopsis:
- frsg
-
- trsg.c - C version of the frsg program
-
- Synopsis:
- trsg
-
- gexamp.c - Instance 0 spawns nproc-1 copies of gexamp. All group
- members then perform a barrier. All members
- broadcast a copy of their tid and instance to the
- entire. Each process checks the incoming message
- against its own data.
-
- Synopsis:
- gexamp <nproc>
-
- joinleave.c - One process continually joins and leaves the same
- group. A diagnostic is printed every 100 join/leave pairs.
- Will join and leave the group 10000 times, unless a
- different count is specified on the command line.
-
- Synopsis:
- joinleave [njoins]
- thb.c
- tnb.c - thb joins 32 different groups. It checks the
- group server for consistency using pvm_gettinst and
- pvm_gettid. It then spawns <nproc> tnb process and
- sends them some intialization information. The tnb
- processes receive the initialization
- data and then perform a barrier with themselves and
- the thb process.
-
- Synopsis:
- thb <nproc>
-
-
- HOW TO COMPILE
-
- $PVM_ROOT/lib should be in your path so that the aimk program can be
- located. Then,
-
- % aimk all # make all the test programs
-
- % aimk frsg # make just frsg
-
-
- NOTES FOR PARAGON USERS
-
- All the codes are compiled to run as compute node programs. You
- must therefore spawn the programs from the pvm console. For
- example to run the gexamp program type at the pvm console
-
- % pvm # start a pvm console, in $PVM_ROOT/lib/$PVM_ARCH/pvm
- pvm> spawn -> gexamp <4>
-
-
- The -> redirects all output of the tasks to the pvm console window.
-
-