073eee46_n_Memory_Columnar_Store__IMCS___Recommendations
[Parameter name] imcs.n_threads [Description] Number of threads in thread pool for concurrent execution of a query [Default value] 0 - autodetect number of CPUs [Recommendations] 
Usually number of threads should be equal to number of physical execution units in the system. Please notice that in case of using hyperthreading number of reported CPUs is twice large than real number of cores. Set this parameter to 1 to disable concurrent execution
In-Memory Columnar Store (IMCS)
Recommendations