copyFileToStore
Description
Examples
Copy Files to FileStore
Object
Run a simulation on a parallel pool of process workers and retrieve the file storage on a client. The file storage is a FileStore
object with key-file entries. Copy files to this object as specified by its corresponding keys using the copyFileToStore
function.
The following simulation finds the average and standard deviation of random matrices and stores the results in the FileStore
object using copyFileToStore
.
type workerStatsCode
function workerStatsCode(models) % Get the FileStore of the current job store = getCurrentFileStore; for i = 1:numel(models) % Compute the average and standard deviation of random matrices A = rand(models(i)); M = mean(A); S = std(A); % Save simulation results in temporary files sourceTempFile = strcat(tempname("C:\myTempFolder"),".mat"); save(sourceTempFile,"M","S"); % Copy files to FileStore object as key-file pairs key = strcat("result_",num2str(i)); copyFileToStore(store,sourceTempFile,key); end end
Start a parallel pool of process workers.
pool = parpool("Processes");
Starting parallel pool (parpool) using the 'Processes' profile ... Connected to the parallel pool (number of workers: 6).
Get the FileStore
for this pool.
store = pool.FileStore;
Run the simulation on the pool.
models = [4,8,32,20]; future = parfeval(@workerStatsCode,0,models); wait(future);
Input Arguments
store
— File storage shared by MATLAB® clients and workers
FileStore
object
File storage shared by MATLAB clients and workers, specified as a FileStore
object.
fileSet
— Local files
character vector | string scalar | string array | cell array of character vectors or strings
Local files, specified as a character vector, string scalar, string array, or cell
array of character vectors or strings. fileSet
and
keySet
must have the same number of elements.
Example: ["/data/run.mat" "/tmp/run_log.txt"]
keySet
— Keys to add
character vector | string scalar | string array | cell array of character vectors or strings
Keys to add, specified as a character vector, string scalar, string array, or cell
array of character vectors or strings. fileSet
and
keySet
must have the same number of elements.
Example: ["myDataKey" "myLogKey"]
Version History
Introduced in R2022a
See Also
FileStore
| isKey
| keys
| remove
| copyFileFromStore
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