NetCDF Performance Benchmark Tool (NetCDF-Bench) was developed to measure NetCDF I/O performance on devices ranging from notebooks to large HPC systems. It mimics the typical I/O behavior of scientific climate applications and captures the performance on each node/process. In the end, it aggregates the data to the human-readable summary.
NetCDF-Bench supports independent I/O, collective I/O and chunked I/O modes. If necessary, it can pre-fill the variables with some value.
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Benchtool (datatype: int)
Data geometry (t:x:y:z x sizeof(type)) 100:100:100:10 x 4 bytes
Block geometry (t:x:y:z x sizeof(type)) 1:100:100:10 x 4 bytes
Datasize 40000000 bytes (40.0 MB)
Blocksize 400000 bytes (400.0 kB)
I/O Access independent
Storage contiguous
File length fixed
Fill value no
min avg max
benchmark:write Open time 1.3148752760 1.3148752760 1.3148752760 secs
benchmark:write I/O time 0.2117756090 0.2117756090 0.2117756090 secs
benchmark:write Close time 0.1916803280 0.1916803280 0.1916803280 secs
benchmark:write I/O Performance (w/o open/close) 180.1292076844 180.1292076844 180.1292076844 MB/s
benchmark:write I/O Performance 22.2000114807 22.2000114807 22.2000114807 MB/s