+r.univar has received OpenMP support for parallel processing. The user +can specify the number of threads to be used with the nprocs parameter. +However, parallelization is disabled when the -e extended statistics +flag is used. + +
+Due to the differences in summation order, users may encounter floating points +discrepancies when r.univar is run on larger raster files when different +nprocs parameters are used. However, since the work allocation among threads +is static, users should expect to have the same results when run with the same +number of threads. + +
+Users should expect to observe close to n-fold speedup for n-fold processors on +reasonably large raster map. The speedup is however limited depending on the number +of cores available in the users' hardware. +