Is this possible? On 11-03-07 10:12 AM, Nathan Jensen wrote: > Is this possible? That depends on what you mean by "parallel for loops". Matlab has a published external interface. That interface could be used to call out to arbitrary routines that might _somehow_ do computations in parallel, such as by using OpenMP or POSIX Threads or using an operating-system-specific method. Or you could start multiple Matlab instances and have them communicate with each other somehow, such as via shared memory or TCP; there are a couple of Mathworks File Exchange (FEX) contributions for such purposes. You could potentially use Jacket Computing's GPU computing products. However, PARFOR is only enabled if you have the Parallel Processing Toolbox (or perhaps the Distributed Computing Toolbox.) ...

Dear Colleagues, I would like to call your kind attention to the updated website of the Soft Computing Research Group at the University of Veszprem (Hungary) http://www.fmt.vein.hu/softcomp/ You can download MATLAB Toolboxes: - Fuzzy Clustering MATLAB Toolbox - Genetic Programming MATLAB Toolbox - Interactive Evolutionary Strategy (EASy) MATLAB Toolbox - Constrained Fuzzy Model Identification for the FMID Toolbox independent MATLAB programs related to: - Data mining * Fuzzy clustering based time-series segmentation * Supervised Fuzzy Clustering for the Identification of Fuzzy Classifiers * Fuzzy Modeling with Multidimensional Membership Functions: Grey-Box Identification and Control Design * Compact TS-Fuzzy Models through Clustering and OLS plus FIS Model Reduction * Inconsistency Analysis of Labeled Data * Star plots - MATLAB files for Graphical Representation of trace elements of clinkers - Process control and monitoring * Feedback Linearizing Control Using Hybrid Neural Networks Identified by Sensitivity Approach * Incorporating Prior Knowledge in Cubic Spline Approximation - Application to the Identification of Reaction Kinetic Models * Identification and Control of Nonlinear Systems Using Fuzzy Hammerstein Models - A Simple Fuzzy Classifier based on manuscripts in PDF about - fuzzy model based process control and monitoring - fuzzy clustering and classification - incorpor...

Dear Colleagues, I would like to call your kind attention to the updated website of the Soft Computing Research Group at the University of Veszprem (Hungary) http://www.fmt.vein.hu/softcomp/ You can download MATLAB Toolboxes: - Fuzzy Clustering MATLAB Toolbox - Genetic Programming MATLAB Toolbox - Interactive Evolutionary Strategy (EASy) MATLAB Toolbox - Constrained Fuzzy Model Identification for the FMID Toolbox independent MATLAB programs related to: - Data mining * Fuzzy clustering based time-series segmentation * Supervised Fuzzy Clustering for the Identification of Fuzzy Classifiers * Fuzzy Modeling with Multidimensional Membership Functions: Grey-Box Identification and Control Design * Compact TS-Fuzzy Models through Clustering and OLS plus FIS Model Reduction * Inconsistency Analysis of Labeled Data * Star plots - MATLAB files for Graphical Representation of trace elements of clinkers - Process control and monitoring * Feedback Linearizing Control Using Hybrid Neural Networks Identified by Sensitivity Approach * Incorporating Prior Knowledge in Cubic Spline Approximation - Application to the Identification of Reaction Kinetic Models * Identification and Control of Nonlinear Systems Using Fuzzy Hammerstein Models - A Simple Fuzzy Classifier based on manuscripts in PDF about - fuzzy model based process control and monitoring - fuzzy clustering and classification - incorporation of a priori knowledge in the identif...

I recently purchased a quad-core i7. With hyperthreading enabled my OS (Ubuntu 10.10) recognizes 8 cores. However when I try to open a matlabpool session using more than 4 clients I get an error saying I am trying to create more sessions than I have cores. Is it possible to enable matlab to use the virtual cores that are created via hyperthreading? "Stuart Layton" <neurostu@yahoo.com> writes: > I recently purchased a quad-core i7. With hyperthreading enabled my OS > (Ubuntu 10.10) recognizes 8 cores. However when I try to open a > matlabpool session using more than 4 clients I get an error saying I > am trying to create more sessions than I have cores. > > Is it possible to enable matlab to use the virtual cores that are > created via hyperthreading? Whether or not you get any additional speed using the additional virtual cores depends very much on your algorithm. To set up the local scheduler to allow you to use 8 local workers, simply open the "Configurations Manager" via the "Parallel" menu. Double-click the "local" entry, and set the "ClusterSize" to 8. Cheers, Edric. Edric M Ellis <eellis@mathworks.com> wrote in message <ytwvd0lz2vy.fsf@uk-eellis-deb5-64.dhcp.mathworks.com>... > "Stuart Layton" <neurostu@yahoo.com> writes: > > > I recently purchased a quad-core i7. With hyperthreading enabled my OS > > (Ubuntu 10.10) recognizes 8 cores. Howe...

Hi, I am using wring some codes to run my program in parallel using the matlab parallel toolbox. My program is all based on command line and no GUI is provided. So I am wondering if I can use command line to - detect how many cpus can be set to be a worker - set up the local workers, - and any other commands that dealing with this parallel toolbox Thanks very much. "George " <guanjihou@gmail.com> writes: > I am using wring some codes to run my program in parallel using the matlab > parallel toolbox. My program is all based on command line and no GUI is > provided. So I am wondering if I can use command line to - detect how many cpus > can be set to be a worker > - set up the local workers, > - and any other commands that dealing with this parallel toolbox The local scheduler automatically detects how many cores your machine has, providing you do not modify the local profile (you can specify an explicit number which overrides the automatic value). So, for example, if you issue the command matlabpool open local that will start as many workers as you have cores on your machine. The local scheduler keeps track of how many workers are running, and will not exceed the number of cores on your machine. Cheers, Edric. Edric M Ellis <eellis@mathworks.com> wrote in message <ytwvcmxoqpg.fsf@uk-eellis0l.dhcp.mathworks.com>... > "George " <guanjihou@gmail.com> writes: > > > I am using wring some ...

Hello All, I have just started using the Parallel Computing Toolbox and I am a bit puzzled about some of the results that I am seeing. I have an 8 core Intel Xeon PC with 16GB of RAM and I'm using MATLAB R2010b. I thought that by using the Parallel Computing Toolbox I could speed up my fft computations. However I'm seeing the opposite effect. For example here is a snippet of code that I've been working on. As you can see the parallel version takes a lot longer than just performing a normal fft. Any suggestions to what I'm doing wrong or what I don't understand about this computation. Thanks tic sched = findResource('scheduler', 'type', 'local') j = createJob(sched) createTask(j, @fft, 1, {X(1,:)}) submit(j); waitForState(j) results = fftshift(getAllOutputArguments(j)) test = results{1}; plot(abs(test)) destroy(j); toc tic;output = fft(X(1,:));toc Elapsed time is 3.292587 seconds. Elapsed time is 0.001755 seconds. size(X(1,:)) ans = 1 15000 "Shannon " <shannon.fitzpatrick@drdc-rddc.gc.ca> writes: > I have just started using the Parallel Computing Toolbox and I am a > bit puzzled about some of the results that I am seeing. I have an 8 > core Intel Xeon PC with 16GB of RAM and I'm using MATLAB R2010b. I > thought that by using the Parallel Computing Toolbox I could speed up > my fft computations. However I'm seeing the opposite effect. For > example here is a snippe...

Hello My Matlab version is R2010a 64bit Linux. I can see that my Matlab comes with parallel toolbox. However, in that toolbox, I can not find GPU computing subsection. Matlab therefore gives error when I call "gpuArray". I wonder why is that, is that because my Matlab Version is old, or do I have to purchase a separate gpu toolbox? "Peng " <pengguan1983@gmail.com> wrote in message news:j601v9$28v$1@newscl01ah.mathworks.com... > Hello > > My Matlab version is R2010a 64bit Linux. I can see that my Matlab comes > with parallel toolbox. However, in that toolbox, I can not find GPU > computing subsection. Matlab therefore gives error when I call "gpuArray". > I wonder why is that, is that because my Matlab Version is old, or do I > have to purchase a separate gpu toolbox? The Release Notes for Parallel Computing Toolbox indicate GPU capabilities were introduced in release R2010b, which is newer than the release R2010a version that you're using. http://www.mathworks.com/help/toolbox/distcomp/rn/bsloyak-1.html -- Steve Lord slord@mathworks.com To contact Technical Support use the Contact Us link on http://www.mathworks.com Peng, you don't need to upgrade your MATLAB version. Just use Jacket, http://accelereyes.com You'll be better off with this approach for these reasons: http://accelereyes.com/compare Thank you very much, that seems to be a very useful thing! "John Melonakos" ...

i've successfully used fmincon using all the cores on a single processor (using matlabpool local), but am having issues using it on a cluster (using the job submission function). i am very certain that fmincon is not taking advantage of the cluster when computing the gradients, because the runtime to perform 4 iterations (~180 fevals) took as long as if a single core was operating. anyone successfully use fmincon on a cluster? any help would be much appreciated. thanks. -jason "Jason " <jbazil@purdue.edu> writes: > i've successfully used fmincon using all the cores on a single processor > (using matlabpool local), but am having issues using it on a cluster (using > the job submission function). i am very certain that fmincon is not taking > advantage of the cluster when computing the gradients, because the runtime to > perform 4 iterations (~180 fevals) took as long as if a single core was > operating. anyone successfully use fmincon on a cluster? any help would be > much appreciated. thanks. Are you submitting a matlabpool job? I must confess that I only tested this using the local scheduler, but this got the speedup I expected: %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % Adapted from one of the fmincon demos... function j = fminconOnCluster( sched ) j = sched.createMatlabPoolJob(); j.createTask( @iFcn, 1, {} ); j.submit(); end function time_fmincon_parallel = iFcn() startPoint = [1...

Dear MATLAB experts, currently, I use the academic version of MATLAB and I would like to try out the Parallel Computing Toolbox. Is there any way to acquire this toolbox for my academic MATLAB version? Kind Regards, Dima "Dimitri " <dimitrn@g.clemson.edu> wrote in message news:jiqmsn$bcn$1@newscl01ah.mathworks.com... > Dear MATLAB experts, > > currently, I use the academic version of MATLAB and I would like to try > out the Parallel Computing Toolbox. Is there any way to acquire this > toolbox for my academic MATLAB version? If you're using the Student Version of MATLAB, Parallel Computing Toolbox is available as an add-on product. http://www.mathworks.com/academia/student_version/companion.html Note that MATLAB Distributed Computing Server is NOT available as an add-on product, so I don't believe you will be able to connect multiple machines to create a cluster using Student Version. You should be able to use a local cluster, though. If you're using the Professional Version of MATLAB using Clemson University's license, you will need to check with the IT staff that are responsible for maintaining that license to determine if Parallel Computing Toolbox is included in the license or to discuss setting up a trial version of the toolbox if it is not. -- Steve Lord slord@mathworks.com To contact Technical Support use the Contact Us link on http://www.mathworks.com ...

I have a quad core computer; and I use the parallel computing toolbox. I modify the default 'local' setting; and set different number for the "worker" number in the parallel computing setting, for example 2,4,8.. And also set the minimum and maximum worker to work for the task. After the setting, I did the validation to make sure everything is ok. However, no matter what I set, the AVERAGE cpu usage by MATLAB is exactly 25% of total CPU usage; and None of the cores run at 100% (All are around 10%-30%). I am using MATLAB to run optimization problem, so I really want my quad core computer using all its power to do the computing. Please help ...

Hi, I am designing a feedback control loop as part of a project. The MATLAB program reads data through the analog input of a DAC (NI USB 6009), and when there is enough data (say N), it starts to process the data to get a control output and send it through the digital output of the DAC. The reading should be kept going while processing the control signal; and the control signal calculation is refreshed when every time when N/3 data comes in (like a moving window of size N, averaging the old data with the new ones) My problem is how to perform these in parallel? This doesn't need to be in real time, but needs to be fairly quick, the delay still needs to be in orders of seconds. I am not sure if parallel computing toolbox is the solution or there are better (simpler) ways. I am new to Matlab, so please give me some advice on this ^^ thank u all. ...

Dear all, I am currently using parallel computing for optimization. I use "matlabpool open 8" command; and use Multistart function for the optimization. In the Multistart function it has been set to be "UseParallel" is "always". Problem is that I see 9 MATLAB image name in Window task manager. Only one of them use 25% of my CPU resource (I have a quad core computer; 25% is equal to one core is fully operating) . All others are 0% CPU usage. I really don't understand the situation. In term of memory usage, the one using 25% of CPU power use 210M bytes. All the others uses 109M bytes. In my computer, open a new MATLAB window but doing nothing is around 109M bytes. What that means?? Please help. I need the parallel computing power. Thanks ...

Good day all, I currently have an optimization algorithm implemented in Matlab. The time to arrive at a solution for this algorithm varies. There is a speed variation since success of ending the optimization relies on randomly selecting a set of data which is hopefully reliable enough for a solution. So for example, my algorithm can end in little as 1 iterations or a maximum of 200 iterations ( i.e. ,a value which I set). I have seen Matlab's Parallel computing toolbox but not sure if would apply to my situation. I would like to know if it is possible to somehow run my algorithm in "parallel" jobs, such that, I can run the script multiple times and end the overall algorithm with the job that terminates first ? Is anything like this or similarly possible with the parallel toolbox? thanks any suggestions, Aiden "Aidy" wrote in message <j7i8jp$1ai$1@newscl01ah.mathworks.com>... > Good day all, > > I currently have an optimization algorithm implemented in Matlab. The time to arrive at a solution for this algorithm varies. > > There is a speed variation since success of ending the optimization relies on randomly selecting a set of data which is hopefully reliable enough for a solution. So for example, my algorithm can end in little as 1 iterations or a maximum of 200 iterations ( i.e. ,a value which I set). > > I have seen Matlab's Parallel computing toolbox but not sure if would apply to my situati...

Hey,, I am new into the area of image processing and matlab Can any one help me either by explainging or referencing some papers show how the People tracking example in computer vision toolbox in matlab ... I am also interesting if I attached different markers to different people how can I use thses markers to track people by labeling people in the video according to their markers ...

Hello Everyone, I just purchased the parallel computing toolbox. I have 2 general questions on the 'spmd' function. Is running looping iterations on spmd faster than normal for loops ? Is spmd faster on quad core (4 cores) vs a dual core(2 cores) , again in the case of running looping iterations ? regards,Kate "Kate " <chino_tones@hotmail.com> wrote in message <j7tsjk$5r3$1@newscl01ah.mathworks.com>... > Hello Everyone, > > I just purchased the parallel computing toolbox. I have 2 general questions on the 'spmd' function. > > Is running looping iterations on spmd faster than normal for loops ? ========= The only chance it would be is if you distribute the loop, using for...drange. > Is spmd faster on quad core (4 cores) vs a dual core(2 cores) , again in the case of running looping iterations ? ============= You'll never know until you try. In my experience, It depends too much on what's being parallelized and the specifics of your architecture. ...

Hi all, I have a working setup of Matlab 2008a (alt. or 2009b) running PCT with the ability to submit jobs to 8 machines on a Linux cluster. I can submit jobs using either the Torque or PBS Pro interfaces. My code is embarrassingly parallel (matlabpool followed by parfor). When submitting jobs 'locally', I can of course access up to 8 threads on the head machine. However, I would like to submit to the cluster and use multiple cores on the clients. However, when I submit jobs to multiple 'labs', I can submit to up to 8 labs, and then the service only runs on a single core on each machine. Since my code itself doesn't take advantage of multiple cores, I need the PCT to distribute each job to its own core. Ideally, I would submit to 4-8 machines, and about 4 cores each, for a total of 16-32 jobs in parallel. Is there a way to do this via the PCT? I'd like to avoid using the Distributed Computing Server because it's a pain to set up with the job submission system (torque/qsub). To answer my own question, there is a solution here: http://www.mathworks.com.au/matlabcentral/newsreader/view_thread/268675 ResourceTemplate can be set appropriately in the torque PCT configuration. "Eugene Brevdo" <ebrevdo.remove@this.alum.rpi.edu> wrote in message <hk6toc$rl6$1@fred.mathworks.com>... > Hi all, > I have a working setup of Matlab 2008a (alt. or 2009b) running PCT with the ability to submit jobs to 8 machines on a Linux c...

=20 SOFT COMPUTING Journal - SPRINGER =20 Special Issue on =20 Soft Computing for Bioinformatics =20 CALL FOR PAPERS =20 The past few years have witnessed phenomenal growth of=20 bioinformatics, an exciting field devoted to the interpretation and=20 analysis of biological data using computational techniques. Among=20 the large number of computational techniques used, soft computing,=20 which incorporates=20 =20 * neural networks,=20 * evolutionary computation,=20 * fuzzy systems, and=20 * chaos,=20 =20 stands out because of its demonstrated strength in handling=20 imprecise information and providing novel solutions to hard=20 problems.=20 =20 This special issue aims at not only showcasing innovative=20 applications of soft computing techniques to bioinformatics, but=20 also clarifying outstanding issues for future progress.=20 =20 Biological areas of interest include but are not limited to the=20 following:=20 =20 * protein structure and function,=20 * genomics,=20 * proteomics,=20 * molecular sequence analysis,=20 * evolution and phylogenetics,=20 * molecular interactions and structure,=20 * gene expression,=20 * metabolic pathways,=20 * regulatory networks,=20 * developmental control and systems biology. =20 =20 Papers should be submitted in PDF format via email to any of the=20 following guest editors by 30 March 2004: =20 * David Corne (D.W.Corne@exeter.ac....

I have a x86-64 system w/ 12 Cores and 8 GPU cards. Supposing I have the parallel toolbox, I am allowed to use up to 12 workers. From what I understand, the following scenario would work (Please correct me if I'm wrong): assign N workers to N GPU cards and (12-N) workers to (12-N) cores. Now, are we allowed to assign multiple cores to a single worker, and have that worker multi thread between cores? For example, use 5 workers: 4 workers to 4 GPU cards, and 1 Worker for 6 cores? I would appreciate any help. ...

I got a problem migrating from MATLAB/Distributed Computing Server R2008a to R2010b (I am using MATLAB on windows client with a linux cluster, running PBS scheduler; I am using submit function from "MATLAB\R2010b\toolbox\distcomp\examples\integration\pbs\nonshared") I'm trying to submit two simple tasks to run on cluster: createTask(j, @sin, 1, { 1 }) createTask(j, @(x)x+1, 1, { 1 }) I got the result from the 1st task, but no result from the 2nd one: getAllOutputArguments(job1) ans = [0.84147] [] I tried to check the log files on cluster. Here is the Warning from 2nd tasks' log file: (...) About to get evaluation data Warning: Could not find appropriate function on path loading function handle D:\work\Cluster\runatcluster.m>@(x)x+1 > In distcomp.fileserializer.getFields>iLoadMat at 92 In distcomp.fileserializer.getFields at 70 In distcomp.abstracttask.pGetEvaluationData at 13 In distcomp/private/dctEvaluateTask>iEvaluateTask/nEvaluateTask at 196 In distcomp/private/dctEvaluateTask>iEvaluateTask at 136 In distcomp/private/dctEvaluateTask at 60 In distcomp_evaluate_filetask>iDoTask at 97 In distcomp_evaluate_filetask at 39 Begin task function End task function (...) It seems to look my anonymous function @(x)x+1 in my local file. ("D:\work\Cluster\runatcluster.m" is a file, I am running createTask from. This is file on my local machine) Please help! What's the difference between @sin and @(x)x+1? I had...

hi can anyone tell me that in which version of matlab computer vision system toolbox presents? does it present in matalb 7.0? "joveria" wrote in message <ispn40$j14$1@newscl01ah.mathworks.com>... > hi > can anyone tell me that in which version of matlab computer vision system toolbox presents? does it present in matalb 7.0? in which matlab version, computer vision system toolbox is present? "joveria" wrote in message <ispttk$5fh$1@newscl01ah.mathworks.com>... > "joveria" wrote in message <ispn40$j14$1@newscl01ah.mathworks.com>... > > hi > > can anyone tell me that in which version of matlab computer vision system toolbox presents? does it present in matalb 7.0? > > > in which matlab version, computer vision system toolbox is present? Hi Joviera, The Computer Vision System Toolbox was released in R2011a. Wayne "Wayne King" <wmkingty@gmail.com> wrote in message <isq5ms$nf4$1@newscl01ah.mathworks.com>... > "joveria" wrote in message <ispttk$5fh$1@newscl01ah.mathworks.com>... > > "joveria" wrote in message <ispn40$j14$1@newscl01ah.mathworks.com>... > > > hi > > > can anyone tell me that in which version of matlab computer vision system toolbox presents? does it present in matalb 7.0? > > > > > > in which matlab version, computer vision system toolbox is present? > > Hi Joviera, The Co...

Is any body doing parallel computing with matlab here? ...

Hi, i've written an open source C++ framework for Cell Computing. Cell Computing is alike grid computing, but is leant on the biologic. If you are interested please visit http://www.xatlanits.ch. Unfortunately not all documents are available in english yet. All ideas and improvments are welcome :-) -- ...

Hi, I just bought a six-core desktop (12 Threads) and discovered that the maximum worker allowed by the parallel computing toolbox is eight workers. This is really disappointing, and I am just wondering if there is anyway to fully utilize the 12 processes and have 12 workers on one local machine. I browsed the help guide for the Distributed Computing Server toolbox and it seems it only works when you'd like to create workers on remote computers. Your help is greatly appreciated. Thank you! richard "Richard Liu" <richardkailiu@gmail.com> wrote in message news:hrhupd$2v3$1@fred.mathworks.com... > Hi, I just bought a six-core desktop (12 Threads) and discovered that the > maximum worker allowed by the parallel computing toolbox is eight workers. I believe that is the correct behavior, assuming you have just Parallel Computing Toolbox. To use more than 8 local workers, or to use workers across multiple machines, you will need MATLAB Distributed Computing Server as well. > This is really disappointing, and I am just wondering if there is anyway > to fully utilize the 12 processes and have 12 workers on one local > machine. I browsed the help guide for the Distributed Computing Server > toolbox and it seems it only works when you'd like to create workers on > remote computers. That is not the case. Could you post the URL of the documentation page that gave you that impression, so that our d...

Hi all, As I'm working in a geophysics lab, one of my point of interests regarding plan9 would be heavy scientific computation, especially parallel computing. So, first is there any fortran compiler on plan9? Second, is there any support for parallel computing, like mpi (even libs for that in C would be something)? Regards, Mathieu. -- GPG key on subkeys.pgp.net: KeyID: | Fingerprint: 683DE5F3 | 4324 5818 39AA 9545 95C6 09AF B0A4 DFEA 683D E5F3 -- On 10/17/07, lejatorn@gmail.com <lejatorn@gmail.com> wrote: > Hi all, > > As I'm working in a geophysics lab, one of my point of interests > regarding plan9 would be heavy scientific computation, especially > parallel computing. > > So, first is there any fortran compiler on plan9? Second, is there any > support for parallel computing, like mpi (even libs for that in C would > be something)? You have two choices. 1) write it from scratch 2) port gcc and then all of gnubin -- and then all of the various parallel computing software if you want industrial strength versions of this type of thing, you won't do (1) better than the scads of people doing it now (well, your code will sure look better than openmpi.org, but it won't do mpi better). So you might want to start with the gcc port. Not because we want gcc, mind, but because we need gcc -- because there are way too many bits that have to be done, and not enough people to do them. ron ...

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