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Content Feed
parpool sorting out the default number of workers
Hey @Bruno Luong, per your link, you have 8 Efficient cores, hence 14 (6+8) cores. For R2022b (which I think is the version you...
28 días hace | 0
Best parallel computing option for heavily serialized code
The very nature of a cascading algorithm (i.e., dependent on previous values) makes it impossible to parallellize. However, per...
alrededor de 1 mes hace | 1
Parallel sever: Request GPU via SLURM
Hi @Christopher McCausland, try the following cluster = parcluster(); cluster.AdditionalProperties.AdditionalSubmitArgs = '--g...
alrededor de 2 meses hace | 1
| aceptada
parallel computing - cluster profile validation job test(create job) stuck in running
Any chance you have a local pool already running? If so, this would block validation. If not, I would suggest reaching out t...
alrededor de 2 meses hace | 0
Connecting to a parallel server over the Internet
The "server" machine has to be reachabe from the Internet. If this is an isolated machine, without a public IP address, you won...
alrededor de 2 meses hace | 0
How to have a global variable that can be accessed and edited and used inside a parfor loop? Or, how to show progress of a parallel job?
Workers in a parfor-loop can't communicate with each other, so a global variable won't work. Consider using a DataQueue. The p...
alrededor de 2 meses hace | 1
| aceptada
Resuelto
Get the length of a given vector
Given a vector x, the output y should equal the length of x.
2 meses hace
Resuelto
Flip the vector from right to left
Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...
2 meses hace
Resuelto
Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...
2 meses hace
Why am I getting invalid file identifier error?
fopen will return two output arguments: the file id and an error message if it failed (i.e., the file id is <0). Add the follow...
2 meses hace | 0
parfor code can not run after wrapping into a function
Hi @Yulin, when you write your code without the function prototype function tempFcn() then as a script, MATLAB doesn't know if...
2 meses hace | 0
Can parfor be used if no Parallel Computing Toolbox licenses are available?
Hi @Gregory Vernon. If Parallel Computing Toolbx is not installed, then MATLAB will run parfor serially, in reverse order. Tho...
3 meses hace | 0
Suppress parallel toolbox logs
If you're not already, add a semicolon to suppress the evalc calls. evalc('pool = gcp();'); evalc('delete(pool)'); Above reas...
3 meses hace | 0
Plotting graphs using parallel computing toolbox and communicating between workers
Look at https://www.mathworks.com/matlabcentral/answers/1829258-how-to-use-composite-objects-using-spmd#answer_1077643 for some ...
3 meses hace | 0
| aceptada
Using System() to submit cluster job to SLURM but gives "sbatch: command not found" error.
I suspect the command not found is for sbatch. If so, I would suggest hardcoding the location of it in your path. For example ...
3 meses hace | 0
How to use composite objects using spmd
It's not related to your parallel code, the issue is the initialization of mov. This can be reproduced by the following functi...
4 meses hace | 0
| aceptada
Where we can check the total number of worker instances configured in Matlab parallel server.
Are you using MATLAB job scheduler (MJS) or your own (e.g. PBS)? MJS has a property that specifies the current number of idle w...
4 meses hace | 0
Cluster uses only one node, even though 5 nodes Running (parfor)
Starting a parpool will create very little activity for the workers. It's only once you run a parallel construct (e.g., parfor)...
4 meses hace | 0
How to run .m files in one thread from an app running in a different thread so that I can interact with the app during .m file execution?
@Mitchell Tillman you might consider refactoring the code so that the callbacks call parfeval with backgroundPool, but keep in t...
5 meses hace | 0
Unrecognized function or variable 'nvcc'. with Matlab R2022a
nvcc is a NVIDIA compiler, not a MATLAB function. I suspect what you want is mexcuda.
5 meses hace | 0
| aceptada
Running parfor on SLURM limits cores to 1
Try changing -n 32 for -c 32 -n is tasks, but with 1 CPU per task (by default). It's possible that cgroups is telling MA...
5 meses hace | 0
| aceptada
When does what License get reserved when using MATLAB Parallel Server?
My questions lie in, what is the exact sequence of when licenses are reserved and when the job gets scheduled and when the job r...
6 meses hace | 0
| aceptada
Each PARFOR Worker Writes to the Same File
@Paul Safier since the order of the file doesn't have to be deterministic, use a data queue to write back to the client and have...
6 meses hace | 0
Parallel for loop problem
@Simone Fiumi think of the code running in the parfor as running on some entirely different machine. There is no "debugging" pe...
6 meses hace | 1
Extract variable from function after using parfeval
@Koren Murphy the issue is that you've told MATLAB there are no output arguments (even if there are) F(K)=parfeval(fcn,0,K); T...
6 meses hace | 1
Confirm if Parallel Server is installed on cluster
Hi @Michael Raba. Reach out to me directly and I'll help you work through this.
7 meses hace | 0
| aceptada
Issue using a parfor loop to control two instruments at the same time
Hi @james ingham, I see a couple of potential issues main1; %<------ Connects to laser and starts connection etc (WORKS FINE) ...
7 meses hace | 0
| aceptada
Recommended approach to "resetting" the workers for each new parallel computation?
Hi @Mitsu You have the right idea. A couple of quick comments If you have a parallel pool running, then deleting the jobs wil...
7 meses hace | 1
Setting -configCluster- in Matlab 2018b
@Stefano Lombardi I wrote configCluster for your site. Reach out to me direclty if you have any questions regarding how to use ...
7 meses hace | 0