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clearInstrumentationResults

Clear results logged by instrumented, compiled C code function

Description

clearInstrumentationResults('mex_fcn') clears the results logged from calling the instrumented MEX function, mex_fcn.

example

clearInstrumentationResults mex_fcn is an alternative syntax for clearing the log.

clearInstrumentationResults all clears the results from all instrumented MEX functions.

Examples

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This example shows how to create an instrumented MEX function, run a test bench, then view logged results.

Define prototype input arguments.

n = 128;
x = complex(zeros(n,1));
w = fi_radix2twiddles(n);

Generate an instrumented MEX function. Use the -o option to specify the MEX function name. Use the -histogram option to compute histograms.

If you have a MATLAB® Coder™ license, you can also add the -coder option. In this case,

buildInstrumentedMex testfft -o testfft_instrumented -args {x,coder.Constant(w)} -histogram

If you have a MATLAB® Coder™ license, you can also add the -coder option. For example,

buildInstrumentedMex testfft -coder -o testfft_instrumented -args {x,w}

Like the fiaccel function, the buildInstrumentedMex function generates a MEX function. To generate C code, use the MATLAB® Coder™ codegen function.

Run a test file to record instrumentation results. Use the showInstrumentedMex function to open the report. To view the simulation minimum and maximum values and whole number status, pause over a variable in the report. You can also see proposed data types for double precision numbers in the table.

for i=1:20
   y = testfft_instrumented(randn(size(x)),w);
end

showInstrumentationResults testfft_instrumented

instrumentation-report-tb1.png

Close the histogram display, then use the clearInstrumentationResults function to clear the results log.

clearInstrumentationResults testfft_instrumented

Run a different test bench, then view the new instrumentation results.

for i=1:20
   y = testfft_instrumented(cast(rand(size(x))-0.5,'like',x),w);
end

showInstrumentationResults testfft_instrumented

instrumentation-report-tb2.png

To view the histogram for a variable, click the histogram icon in the Variables tab.

numeric-type-scope-x-tb2.png

Close the histogram display, then use the clearInstrumentationResults function to clear the results log.

clearInstrumentationResults testfft_instrumented

Clear the MEX function.

clear testfft_instrumented

Input Arguments

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Instrumented MEX function created using buildInstrumentedMex.

Version History

Introduced in R2011b