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NexusTester v1

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Summary

Algorithm for testing and debugging purposes only!

Properties

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 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.

Description

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

Source

C++ header: NexusTester.h

C++ source: NexusTester.cpp