As part of our transition to the new modularized version of Darshan (3.0.0), we have published a technical report evaluating its performance on Edison, a production Cray XC30 system at NERSC. This technical report primarily serves as validation that Darshan’s performance remains suitable for full-time deployment on production HPC systems, but it also provides some additional background that may be useful in understanding the design changes made to Darshan’s runtime library and log file format. Our results indicate that Darshan’s new design is still lightweight enough to run full-time on production systems with little to no impact on the performance of instrumented applications.
A PDF for this technical report can be found HERE.
