Questions on parallel computing in Mathematica.
17
votes
1answer
286 views
Is it safe to launch/close kernels in the middle of a parallel calculation?
It appears that it is possible to launch additional kernels (or close existing ones) during a parallel calculation. The newly launched kernels will be utilized for the rest of the calculation.
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8
votes
0answers
178 views
Using Compile to speed up Function with PermutationProduct
I have the following fairly simple routine dot involving PermutationProduct that I wish to speed up using ...
6
votes
0answers
89 views
How to run an external program in parallel with a Mathematica package?
Under Mathematica 8 (Linux x84_64) I was able to run an external program in parallel from a Mathematica package. However this procedure breaks down under Mathematica 9.
Within my Mathematica package ...
6
votes
0answers
100 views
Is there a way to convert mathematica code to OpenMP or OpenACC?
I see that Mathematica has limited support for things like OpenCL and CUDA, but what about other standards like OpenMP or OpenACC?
6
votes
0answers
238 views
Bug in Parallel Kernels Status?
I have a computation running, where I use all my available kernels using ParallelDo. However, if I check the kernels status under Evaluation -> Parallel Kernel ...
5
votes
0answers
106 views
Parallelizing is much slower than single kernel evaluation?
Starting with a vector of matrices, tVec, I would like to parallelize the multiplication of each element with the same matrix ...
3
votes
0answers
78 views
Mathlink and multithreading
In order to make my computations faster I have developed a C/C++ application calling Mathematica kernel and performing many operations using Mathematica functions for equation solving.
Now I want to ...
2
votes
0answers
69 views
Raster with ColorFunction is blank when Dynamic Updating is disabled
UPDATE
Today I was having these WaveletScalogram problems again. I think this is ultimately some kind of interaction issue with Dynamic. I have narrowed it down to ...
1
vote
0answers
84 views
1
vote
0answers
132 views
Parallel linear algebra with arbitrary precision
Is it possible to do parallel linear algebra with arbitrary precision within Mathematica (in a simple manner, as is done for the machine precision)?
1
vote
0answers
98 views
Return Functions from parallel execution of module
I wrote a module which numerically solves an ODE using NDSolve. The result from this is e.g. either ...
0
votes
0answers
77 views
Parallelization issues
I'm programming an algorithm where I have to evaluate, at each iteration, a characteristic of a subgroup of data. An evaluation of a subgroup takes 2-3 secondes and I have 200 sugroups to test per ...
0
votes
0answers
138 views
Best Parallel Kernel Configuration
I wrote a code snippet which counts prime numbers in any given interval because the built-in PrimePihas a limited bounds.
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