Specify number of multi-file cache buffers for variable
cdflib.setVarCacheSize(cdfId,varNum,numBuffers)
cdflib.setVarCacheSize(cdfId,varNum,numBuffers)
specifies the number of cache buffers the CDF library uses for a variable
in a Common Data Format (CDF) file.
This function is only used with multifile format CDF files. It does not apply to single-file format CDFs. For more information about caching, see the CDF User's Guide.
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Identifier of a CDF file, returned by a call to |
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Numeric value identifying a variable in the file. Variable identifiers (variable numbers) are zero-based. |
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Numeric value identifying the number of cache buffers to use. |
Create a multifile CDF, and then retrieve the number of buffers being used for a variable:
cdfid = cdflib.create('your_file.cdf')
% Set the format of the file to be multi-file
cdflib.setFormat(cdfid,'MULTI_FILE');
% Create a variable in the file
varNum = cdflib.createVar(cdfid,'Time','cdf_int1',1,[],true,[]);
% Note how the library creates a separate file for the variable
ls your_file.*
your_file.cdf your_file.z0
% Determine the number of cache buffers used with the variable
numBuf = cdflib.getVarCacheSize(cdfid,varNum)
numBuf =
1
% Increase the number of cache buffers used.
cdflib.setVarCacheSize(cdfid,varNum,5)
% Check the number of cache buffers used with the variable.
numBuf = cdflib.getVarCacheSize(cdfid,varNum)
numBuf =
5
% Clean up
cdflib.delete(cdfid);
clear cdfidThis function corresponds to the CDF library C API routine CDFsetzVarCacheSize.
To use this function, you must be familiar with the CDF C
interface. Read the CDF documentation at the CDF website.
For copyright information, see the cdfcopyright.txt file.