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NexusTester v1¶

Summary ¶

Algorithm for testing and debugging purposes only!

Name	Direction	Type	Default	Description
SaveFilename	Input	string		The name of the Nexus file to write. Allowed extensions: [‘.nxs’]
LoadFilename	Input	string		The name of the Nexus file to load (optional). Must have been written by NexusTester algorithm. Allowed extensions: [‘.nxs’]
ChunkSize	Input	number	10	Chunk size for writing/loading, in kb of data
NumChunks	Input	number	10	Number of chunks to load or write
Compress	Input	boolean	True	For writing: compress the data.
HDFCacheSize	Input	number	2000000	HDF cache size, in bytes
ClearDiskCache	Input	boolean	False	Clear the linux disk cache before loading. Only works on linux AND you need to run Mantid in sudo mode (!).
FakeData	Input	string	Incrementing Numbers	For writing: type of fake data to generate. Allowed values: [‘Zeros’, ‘Incrementing Numbers’, ‘Random Numbers’]
CompressionFactor	Output	number		The size of the file divided by the size of the data on disk.
SaveSpeed	Output	number		The measured rate of saving the file, in MB (of data)/sec.
LoadSpeed	Output	number		The measured rate of loading the file, in MB (of data)/sec.

This algorithm is meant for developers only!

This algorithm is used for performance testing and debugging of nexus saving and loading.

If you specify SaveFilename (optional), then the algorithm will save a file with the given number of chunks of the given size.

If you specify LoadFilename (optional), then the algorithm will load back a file created with this algorithm.

The SaveSpeed and LoadSpeed output properties are set to the saving and loading rates, in MB per second.

Categories: AlgorithmIndex | Utility\Development