How can the calculation time of the system matrix be
  Home FAQ Contact Sign in
 
 Advanced search
MATCHING GROUPS



more...
POPULAR GROUPS

more...
found 217 articles for 0.350 sec
How can the calculation time of the system matrix be reduced in this     

Group: comp.softsys.math.mathematica · Group Profile · Search for How can the calculation time of the system matrix be in comp.softsys.math.mathematica
Author: lightnation
Date: Jan 7, 2008 08:42

... the alegraic form, not in the form of numerical form. I want to reduce the calculation time of this system matrix. In this file, Asyspssonly is the ...\)] - Arg1[FY[\([\)\(i, k\)\(]\)]]] \)}; Return[l]]; Function calculating the initial values In[48]:= TH = Flatten[{KV, SVA... WNLE, Vg]]; D75 = Chop[Outer[D, WNLE, Vl]]; Matrix manipulation 2 In[110]:= (*Model Reduction*) Ap5 =...
Show full article (18.68Kb)
Reductiion in calculating the system matrix     

Group: comp.softsys.math.mathematica · Group Profile · Search for How can the calculation time of the system matrix be in comp.softsys.math.mathematica
Author: lightnation
Date: Jan 7, 2008 08:44

Hello, The target is calculating system matrix Asys. However, the huge amount of calculation is required mainly due to calculating Inverse[D75]. I am expecting the idea or suggestions that can reduce the calculation time. A15 = {{0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, {0, 0, -7.973585415202521` ...
Show full article (31.36Kb)
Re: [Haskell] Matrix multiplication     

Group: fa.haskell · Group Profile · Search for How can the calculation time of the system matrix be in fa.haskell
Author: Tillmann Vogt
Date: May 3, 2008 20:58

... the compiler knows in this way where to put the data in a NUMA-system (Non-Uniform Memory Architecture). I am not really ... these soon (as a result of the ndp lib). Otherwise, use on one of the matrix libraries (hmatrix/ gslhaskell) For non-nested arrays,...>>> time (&end); d = difftime (end,start); printf ("calculation time: %%.2lf seconds\n", d ); return 0;...
Show full article (6.35Kb)
[Haskell-cafe] Re: [Haskell] Matrix multiplication     

Group: fa.haskell · Group Profile · Search for How can the calculation time of the system matrix be in fa.haskell
Author: Don Stewart
Date: Apr 30, 2008 08:04

... Finds 4 fusion sites, and runs in: $ time ./a result: 63984000000.0 ./a 0.10s user 0.00s system 112%% cpu 0.089 total While the C program...and vector C Executing 100 matrix mult. for M = 4000 N = 4000 result: 63984000000.00 calculation time: 0.00 seconds ./a.out 0.14s user 0.09s system 92%% cpu 0.248 total GHC rocks :) ...
Show full article (3.65Kb)
Re: fsolve calculation time     

Group: comp.softsys.matlab · Group Profile · Search for How can the calculation time of the system matrix be in comp.softsys.matlab
Author: John D'Errico
Date: Mar 7, 2007 14:44

... and get instant replies here. This problem actually involves calculations of fluid behavior in a 3D medium, using ... with 213 function evaluations! (I allowed Matlab to calculate only some of the equations on this simplified version, just to see how long ... up linearly. For example, do you know how much time is required to solve a linear system of equations with 2400 unknowns,...
Show full article (2.38Kb)
Re: Recalculating difference equation coefficients when the time base changes     

Group: comp.dsp · Group Profile · Search for How can the calculation time of the system matrix be in comp.dsp
Author: Tim Wescott
Date: Jun 8, 2010 05:36

... a different set of coefficients will be calculated but the system should have approximately the same gain and time constant(s) but I want to chose... other apples. Ever taken the logarithm of a square matrix? In the latter case, the equation will surely change.... a step jump. Step jumps will get one thrown out in no time when moving 50 ton rolls of steel...
Show full article (12.23Kb)
Re: Using a multicore-processor     

Group: comp.lang.c++ · Group Profile · Search for How can the calculation time of the system matrix be in comp.lang.c++
Author: ankur saxena
Date: Aug 29, 2008 14:41

... Hi, I want to use to quadcore processor to calculate a matrix with a C++-program. The elapsed time for calculating one entry is very variably (approx. 1-30 min) and ... i.e u just need to code in a way to divide ur matrix ( more specifically the JOBS like "for loops" into chunks and use system calls to direct each chunk of jobs to each processor, hopefully the link by " OU ...
Show full article (1.62Kb) · Show article thread
Re: Fixed point simulation speed: any clever ideas on why my fi objects are running so slow?     

Group: comp.dsp · Group Profile · Search for How can the calculation time of the system matrix be in comp.dsp
Author: Randy Yates
Date: May 28, 2008 02:01

... writes: Thanks for you comments guys. @Tim - My calculation was literally a = b*c so a is a 2d matrix also. I was also preallocating a before the calc. ... simple block just to verify an approach or to experiment. When it comes time for "formal" system simulations, I use C. But I answer a question you didn't answer... -- %% Randy Yates %% "With time with what you...
Show full article (1.72Kb) · Show article thread
Re: Enable multicore calculation ?     

Group: comp.softsys.math.mathematica · Group Profile · Search for How can the calculation time of the system matrix be in comp.softsys.math.mathematica
Author: Jean-Marc Gulliet
Date: Apr 27, 2008 11:00

... uses 1 core=85 Is it possible to enable multicore calculations ? By default, a regular version of Mathematica 6.0.2... compute eigenvalues on a large numeric matrix. Your mileage may vary, but on my dual-core system, the SVD starts by ...top command). On the other hand, the eigenvalues used mostly one core at a time (i.e. starts on one core, then switches to the other, then comes back ...
Show full article (2.03Kb) · Show article thread
a high time in the low town tonight     

Group: alt.fan.kathyjo · Group Profile · Search for How can the calculation time of the system matrix be in alt.fan.kathyjo
Author: Whorella Mundane
Date: Jan 16, 2008 10:12

... issues were not entered into our defect tracking system unless a certain database query or reports ... according to its business model. 6. What is a requirements traceability matrix for? What problems does it help avoid? How would you use (... a timeline that tracks the completion of testing requirements to calculate when all testing can be expected to be done. This is a handy artifact ...
Show full article (16.07Kb)
1 · 2 · 3 · 4 · 5 · 6 · 7 · 8 · 9 · next