possible to let pdbart use multiple threads?

[BorisVSchmid]

Calculating the partials of a model is currently the task that takes longest for me in dbarts (0.9-23 CRAN version). In 0.9-22 this would take a few hours in a model of about 7000 observations and 20 variables. Testing now for 0.9-23 if some of the changes under the hood changed that.

Is it possible to implement a parallelisation of the pdbart function? Maybe variables can be calculated in parallel? It seems to be using only a single CPU (out of the 18 available) right now (both in 0.9-22 and 0.9-23).