# The Parallel Computing Toolkit

## Solving problems with *Mathematica* in parallel

on a heterogeneous network

*A Presentation at the Parallel Symbolic Computing
Workshop, October 1-3, 1998 at Mathematica*l Sciences Research
Institute, Berkeley, California.

The *MathLink* communication protocol can be used to
control several *Mathematica* kernel processes from within *Mathematica*.
This feature allows the implementation of a distributed-memory
environment for parallel programming. Parallel language
constructs, such as a parallel version of Map, can easily be
implemented on top of these primitive operations.

We describe a library for parallel programming in *Mathematica*
and give several examples of its use, including virtual shared
memory and synchronization methods.

The library is written completely in *Mathematica* and
is, therefore, machine-independent, allowing its use in
heterogeneous networks and without common file systems. All
library and application code is distributed through *MathLink*.

© 1998 MathConsult Dr. R. Mäder. All rights
reserved.

### Conclusions

I am excited that one can now do interactive parallel
symbolic, numeric and graphic computation entirely within *Mathematica*.

This toolkit should make serious parallel computing accessible
to a wide range of workgroups, labs and classrooms." It is
basically ready for all existing *Mathematica* users.

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