Stata/MP

Stata/MP is the multiprocessor and multicore edition of Stata. Its primary purpose is to run faster. Most of the new features in Stata 15 have been parallelized to run faster on Stata/MP, sometimes much faster.

Here's a summary of how much faster for some of the new features.

	Time to run
Feature	1 core	2 cores	4 cores
ERMs	100	60	40
LCA	100	57	36
Bayes prefix¹	100	55	32
DSGEs	100	100	100
FMMs	100	62	43
GSEM w/ groups	100	59	39
Nonparametric regression	100	86	80
Interval survival	100	54	31
Threshold regression	100	96	94
Multilevel tobit	100	55	33
Theoretical limit	100	50	25

All timings are adjusted to percentages of 100% for one processor. If you pretend that timings for 1 core are 100 seconds, then the column for 2 cores is the number of seconds required to run on 2 cores, and likewise for 4 cores.

¹ The bayes prefix is parallelized to the same extent as the estimator you are prefixing. Times will vary by estimator. This is a rough average.

We know this is a partial list. We haven't yet fully tested the speed of all the new features. When we have, the full timings will be found in the Stata/MP Performance Report.