Using parfeval and getting "Not enough input arguments"

10 views (last 30 days)
I am attempting to use the parfeval function. I routinely get "not enough input arguments" error. Below is a very simplified script, and this gets the same error message. This function simply is trying to open two xml files at the defined path and the filename. If I run the function directly (line commented out with "% %" the function works fine. When attempt to use with parfeval, get the "not enough input arguments" at the link "systemStruc = readstruct(..."
Eventually this will be built into a compiled version. This is very simplied sample of function code, but even this gives me the error.
%test parfeval
systemXmlPath = 'D:\myTestSystem';
systemStatusFile = 'myTestSystemStatus.xml';
WatchID = parfeval( backgroundPool, twoParameterFunction, 1, systemXmlPath, systemStatusFile );
% % result = twoParameterFunction(systemXmlPath, systemStatusFile);
disp('passed off');
function [result] = twoParameterFunction(systemXmlPath, systemStatusFile)
result = false;
%set system level paths and read system defined parameters from the XML
systemStruct = readstruct(fullfile( systemXmlPath,'myTestConfiguration.xml'));
debugLevel = systemStruct.ImageProcess.DebugLevel;
resultsStructIn = readstruct( systemStruct.Folders.ResultsFile);
statusRead = readstruct(fullfile(systemXmlPath, systemStatusFile));
result = statusRead;

Accepted Answer

Benjamin Thompson
Benjamin Thompson on 31 Jan 2022
Edited: Benjamin Thompson on 31 Jan 2022
You probably need an @ sign for the function handle, as in:
WatchID = parfeval( backgroundPool, @twoParameterFunction, 1, systemXmlPath, systemStatusFile );

More Answers (0)


Find more on Background Processing in Help Center and File Exchange





Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!