Community Profile

photo

Raymond Norris


Last seen: Today

MathWorks

87 total contributions since 2003

Contact

Raymond Norris's Badges

  • Knowledgeable Level 3
  • 3 Month Streak
  • Personal Best Downloads Level 2
  • First Review
  • 5-Star Galaxy Level 3
  • First Submission
  • Revival Level 1
  • First Answer
  • Solver

View details...

Contributions in
View by

Answered
Using Parfor in Ga
Nested parfor loops will be treated as a parfor calling a for-loop. For example: parfor idx = 1:N myfcn(idx) end func...

alrededor de 18 horas ago | 0

| accepted

Answered
An license error occured when submitting a sbatch routine in slurm
A few comments MATLAB and Parallel Computing Toolbox only span across a single node. Calling parpool (or parfor, which will st...

1 día ago | 0

| accepted

Answered
matlab install and launch problem
The system requirements for R2020b can be found here https://www.mathworks.com/support/requirements/matlab-system-requirem...

4 días ago | 0

Answered
Matlab Parallel Server worker to worker communication port
A few questions Which version of MATLAB are you running? Is MATLAB running on your local machine and MATLAB Parallel Server on...

14 días ago | 0

Answered
how to ask for a pool size when using parpool with threads
There isn't from within parpool. When you create a Threads pool, the size of the pool is identical to maxNumCompThreads, which ...

14 días ago | 0

| accepted

Answered
Trouble in rewriting the for loop as a parfor loop
This might work, but two clarifying points These aren't the same for jj = col % 1:C_numhalf In your examp...

alrededor de 1 mes ago | 1

| accepted

Answered
special case of using parallel computing toolbox in order to solve decomposed problems
Hi Bill, There might be a couple of options parfeval* createJob/createTask parfor won't do the trick because it doesn't allo...

alrededor de 1 mes ago | 0

Answered
how can I use the parallel computing for lsquarefit function.
Hi Sasidharan, Could you provide a bit more context, at a high level, how you're running your code. That is on your machine o...

alrededor de 1 mes ago | 0

| accepted

Answered
Solving a large (263169x263169) linear system in cluster using 'directed' function
Hi Yaswanth, Take a look at codistributed arrays https://www.mathworks.com/help/parallel-computing/working-with-codistrib...

alrededor de 1 mes ago | 0

| accepted

Answered
For loop and computational time
Hi Muhammad, I would suggest provide a bit more information when it comes to performance questions Which version of MATLAB? H...

alrededor de 1 mes ago | 0

Answered
why the command coder.checkGpuInstall(envCfg) failed in a CPU worker
Hi Mikaël, MATLAB Coder and GPU Coder can be used by workers in interactive sessions (i.e. parpool). See more about what other...

alrededor de 2 meses ago | 0

Answered
Using symbolic subs call inside parfor loop
Hi Antonio, You're just not giving each of the workers enough work to do. Maybe you only need to run nT=5, but see what happen...

alrededor de 2 meses ago | 0

Answered
How to use parpool for different expressions ?
Hi Ole, The parpool command will start a pool of workers (in this case most likely on your 4-core machine). Conceptually, thin...

alrededor de 2 meses ago | 0

Answered
Cannot access the function predict() in R2020b with statistics toolbox
Hi Pistachio, predict ships in the System Identification Toolbox. Thanks, Raymond

alrededor de 2 meses ago | 0

Answered
Invalid path error during making Simulink target with GPU acceleration
Hi Filip, I would suggest contacting Technical Support (support@mathworks.com). Raymond

2 meses ago | 0

Answered
using parallel computing outside a loop
Hi Aref, You don't explain how you're already using parfor -- that could negate what else you can do. Here's a crude example, ...

2 meses ago | 1

| accepted

Answered
HPC MATLAB parpool and speed
Hi Ruan, There are two ways to speed up your code, implicitly and explicitly. You don't have much control over implicitly. MA...

2 meses ago | 0

| accepted

Answered
read tiff image in parfor
Hi Wenjie, The file descriptor in the process of your MATLAB client (outside of the parfor) does not transfer to the processes ...

2 meses ago | 0

Answered
Change folder that Matlab saves session information
If you run local parallel pools, the metadata is also stored in ~/.matlab (by default for Linux). You might consider deleting i...

2 meses ago | 0

Answered
Why parfor cannot handle this
Hi Hussein, All MATLAB tokens must either be functions or variables. Keep in mind, regardless of whether or not code will be e...

2 meses ago | 0

| accepted

Answered
My Home Licence on AWS Workspace with Parallel Computing only allows max of 2 Workers
Hi Sione, I'm going to check that the Home Edition doesn't impose any restrictions. With that said, could you clarify a few po...

2 meses ago | 0

Answered
Any toolbox to use to increase the performance of the simulations using GPU?
Hi, To make use of your NVIDIA GPU, you'll need to install the Parallel Computing Toolbox. Please see the following for MATLAB...

2 meses ago | 0

Answered
While executing Deep learning code , I am getting an error regarding GPU
Hi Krishna, It would apprear as though you don't have a supported GPU. What do you get when you run gpuDeviceCount gpuDevice...

3 meses ago | 0

Answered
Installing MatLab 2018b software on LInux: install_unix not found
Hi Mikael, Probably best to reach out to Technical Support (support@mathworks.com). Raymond

3 meses ago | 0

Answered
use parfor if larger than certian size
Hi Shane, There might be several options here, in no particular order 1. For starters, you might consider starting the...

3 meses ago | 0

| accepted

Answered
Adding gnu parallel to Matlab search path
Hi Nicole, I would suggest contacting Technical Support (support@mathworks.com). They would be able to figure out if GNU paral...

3 meses ago | 0

Answered
How can I get mpiprofile information from a parfor script?
Hi John, Prior to R2020a, you need to call mpiprofile within pmode or a parallel job, as shown in this example: https://w...

3 meses ago | 2

Answered
Parallel.Job error message when 'PathDependencies' are set
Hi Kat, Try set(j, 'AdditionalPaths', PathsToAdd) Also, when using tab completion (as you type "set(j, ") you should see Addi...

3 meses ago | 1

Answered
Can I simulate this example (diffraction pattern) on my CPU not my GPU?
Hi Muhamed, In the best situation, by simply casting your data to a GPU, the code following the data creation will run, so long...

3 meses ago | 1

| accepted

Load more