Differences
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hepsim:files [2018/08/01 11:14] hepsim17 [ProMC file format] |
hepsim:files [2018/08/01 11:16] hepsim17 [ProIO file format] |
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It uses varints for integer values (and, by design, for 4-momenta and vertex). | It uses varints for integer values (and, by design, for 4-momenta and vertex). | ||
It's efficient format for events with large number of particles. | It's efficient format for events with large number of particles. | ||
- | The file sizes for EVGEN files are typically 30% smaller than for traditional ROOT files (with fixed bytes for floats and integers). | + | The file sizes for EVGEN files are typically 30% smaller than for traditional ROOT files (with fixed bytes for floats and integers). |
+ | The file format is self-describing. Suported by C++, Java/Jython (read/ | ||
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[[https:// | [[https:// | ||
It is more efficient file format than ProMC when the number of events in the files larger than 64k, | It is more efficient file format than ProMC when the number of events in the files larger than 64k, | ||
- | and when number of particles in files is not large. For Monte Carlo records, the files created by ProIO are about 10-20% smaller in size than those from ProMC. ProIO files can be used with C++, Python, Java/ | + | and when number of particles in files is not large. For Monte Carlo records, the files created by ProIO are about 10-20% smaller in size than those from ProMC. ProIO files can be used with C++, Python, Java/ |
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