Problem Definition Files

In FitBenchmarking, problems can be defined using several file formats. The examples/benchmark_problems directory holds a collection of these that can be used for reference.

More information on the supported formats can be found on the following pages.

File Formats:

• CUTEst File Format
• Native File Format
• Native File Format (Mantid MultiFit)
• NIST Format

Detecting problem file type

FitBenchmarking detects which parser to use in two ways:

• For the CUTEst file format we check that the extension of the data file is sif

• For native and NIST file formats we check the first line of the file

  • # FitBenchmark Problem corresponds to the native format
  • # NIST/ITL StRD corresponds to the NIST format