clearCache — Clear the cache and counters for one MemoizedFunction object.
clearCache(memoizedFcn) removes all cached entries for a MemoizedFunction object and resets TotalHits and TotalMisses to zero.
Syntax
clearCache(memoizedFcn)Inputs
| Name | Type | Required | Default | Description |
|---|---|---|---|---|
memoizedFcn | Any | Yes | — | MemoizedFunction object. |
Errors
| Identifier | When | Message |
|---|---|---|
RunMat:memoize:InvalidObject | A memoized-function method receives a non-MemoizedFunction object. | memoize: expected MemoizedFunction object |
RunMat:memoize:GcFailure | The memoized object target cannot be allocated or accessed. | memoize: internal object storage failed |
RunMat:clearCache:TooManyOutputs | An output is requested from clearCache. | clearCache does not return output arguments |
How clearCache works
- The input must be a
MemoizedFunctionobject returned bymemoize. - Cache state is shared per wrapped function, so clearing one object also clears other memoized handles for the same function.
- The operation exposes no output argument; requesting one is an error.
- Object properties such as
Function,Enabled, andCacheSizeare preserved.
Example
Clear one memoized cache
f = memoize(@sqrt);
f(4);
f(4);
clearCache(f);
S = stats(f)Expected output:
% S.Cache.TotalHits and TotalMisses are zero.Using clearCache with coding agents
Open a RunMat example with live inputs, then ask the agent to explain how clearCache changes the result.
Run a small clearCache example, explain the result, then change one input and compare the output.
FAQ
Does clearCache delete the MemoizedFunction object?⌄
No. It only clears cache entries and counters.
Does it affect other functions?⌄
No. Use clearAllMemoizedCaches to clear every memoized-function cache.
Related Introspection functions
addprop · assignin · class · clear · clearAllMemoizedCaches · clearvars · dbclear · dbstack · dbstatus · dbtype · evalc · feval · findprop · getcallinfo · inputParser · isa · ischar · isdeployed · iskeyword · ismethod · isobject · isstring · isUnderlyingType · keyboard · matlab.metadata.DynamicProperty.delete · memoize · metaclass · mislocked · mlock · munlock · namelengthmax · narginchk · nargoutchk · notify · onCleanup · stats · str2func · superclasses · underlyingType · verLessThan · version · which · who · whos
Open-source implementation
Unlike proprietary runtimes, every RunMat function is open-source. Read exactly how clearCache is executed, line by line, in Rust.
- View the source for clearCache in Rust on GitHub
- Learn how the RunMat runtime works
- Found a bug? Open an issue with a minimal reproduction.
About RunMat
RunMat is an open-source runtime that executes MATLAB-syntax code blazing on any GPU. It is licensed under the Apache 2.0 license.
- RunMat automatically optimizes your math for GPU execution on Apple, Nvidia, and AMD hardware. No code changes needed. Simulations that took hours now take minutes.
- Start running code in seconds. RunMat runs in the browser, on the desktop, or from the CLI. No license server, no IT ticket.