Mathematica > Systems Interfaces & Deployment > Parallel Computing > Resource Sharing in Parallel Computing > SetSharedFunction
Mathematica > Core Language > Tuning & Debugging > Parallel Computing > Resource Sharing in Parallel Computing > SetSharedFunction
BUILT-IN MATHEMATICA SYMBOL

SetSharedFunction

SetSharedFunction[f1, f2, ...]
declares the symbols as shared functions whose downvalues are synchronized among all parallel kernels.

DetailsDetails

  • Downvalues for a shared function defined on any kernel are maintained by the master kernel and every access on a parallel subkernel is synchronized through the master kernel.
  • Expressions of the form that would remain unevaluated give Null.

ExamplesExamplesopen allclose all

Basic Examples (1)Basic Examples (1)

Make fs be a (global) shared function:

In[1]:=
Click for copyable input

Each subkernel makes a definition for the same shared variable:

In[2]:=
Click for copyable input
Out[2]=
In[3]:=
Click for copyable input
Out[3]=

Without sharing, each subkernel has its own (local) copy of the function:

In[4]:=
Click for copyable input
Out[4]=
In[5]:=
Click for copyable input
Out[5]=
In[6]:=
Click for copyable input

Scope (4)Scope (4)

Generalizations & Extensions (1)Generalizations & Extensions (1)

Applications (3)Applications (3)

Possible Issues (3)Possible Issues (3)

Neat Examples (1)Neat Examples (1)

Top
New in 7
Send Feedback
Mathematica 9 is now available!

400+ new features, including the new Wolfram Predictive Interface, social network analysis, enterprise CDF deployment, and more »

Try Now
Buy/Upgrade
New to Mathematica? Find your learning path »
Have a question? Ask support »