Tuning the number of process in MPI of SciDB


#1

Hi, all

Currently, I have one master, 8 slaves, which means one coordinator server and 8 scidb server, and each scidb server has 16 logical cores. If I only want 1 query to run concurrently, and each scidb server run 16 MPI processs, can the following configurations meet my demands?

# max_concurrent_queries + 2:
execution-threads=3
# max_concurrent_queries * threads_per_query:
result-prefetch-threads=128
# threads_per_query:
result-prefetch-queue-size=128
operator-threads=128

Thanks