The setting <Nr_Processes>8</Nr_Processes> in sen2cor/2.5/cfg/L2A_GIPP.xml does not make any difference, it never uses more than one process.
Does anyone has the same problem?
How can I solve this?
Linux 16N 4.9.0-6-amd64 #1 SMP Debian 4.9.88-1+deb9u1 (2018-05-07) x86_64 GNU/Linux
multiple parallel processes in Sen2Cor applies only for old Sentinel-2 product format (OPER) containing multiple granules. Each granule is assigned to one core.
When processing Sentinel-2 products containing only one granule one core is used, whatever ‘Nr_processes’ is specified.