Variant calling using `sfm` does not adhere to thread limit about elprep HOT 13 OPEN

Command being timed: "elprep sfm NA12878.bam NA12878.elprep.bam --nr-of-threads 35 --mark-duplicates --mark-optical-duplicates NA12878_duplicate_metrics.txt --optical-duplicates-pixel-distance 2500 --sorting-order coordinate --haplotypecaller NA12878.elprep.g.vcf.gz --bqsr NA12878.recall --reference /references/Hsapiens/hg38/seq/hg38.elfasta --known-sites dbsnp-151.elsites --reference-confidence GVCF --target-regions /references/Hsapiens/hg38/coverage/capture_regions/CMGG_WES_analysis_ROI_v2.bed --log-path /projects/demultiplex/development/elprep --timed"
User time (seconds): 74572.83
System time (seconds): 2917.64
Percent of CPU this job got: 2323%
Elapsed (wall clock) time (h:mm:ss or m:ss): 55:35.31
Average shared text size (kbytes): 0
Average unshared data size (kbytes): 0
Average stack size (kbytes): 0
Average total size (kbytes): 0
-> RAM USAGE
Maximum resident set size (kbytes): 40641948 = 40GB
<-
Average resident set size (kbytes): 0
Major (requiring I/O) page faults: 2
Minor (reclaiming a frame) page faults: 352416596
Voluntary context switches: 51149677
Involuntary context switches: 2166519
Swaps: 0
File system inputs: 0
File system outputs: 55015096
Socket messages sent: 0
Socket messages received: 0
Signals delivered: 0
Page size (bytes): 4096
Exit status: 0

elprep version 5.1.1 compiled with go1.16.7 - see http://github.com/exascience/elprep for more information.
2021/10/21 12:07:49 Created log file at /projects/demultiplex/development/elprep/logs/elprep/elprep-2021-10-21-12-07-49-573422852-UTC.log
2021/10/21 12:07:49 Command line: [elprep sfm NA12878.bam NA12878.elprep.bam --nr-of-threads 10 --mark-duplicates --mark-optical-duplicates NA12878_duplicate_metrics.txt --optical-duplicates-pixel-distance 2500 --sorting-order coordinate --haplotypecaller NA12878.elprep.g.vcf.gz --bqsr NA12878.recall --reference /references/Hsapiens/hg38/seq/hg38.elfasta --known-sites dbsnp-151.elsites --reference-confidence GVCF --target-regions /references/Hsapiens/hg38/coverage/capture_regions/CMGG_WES_analysis_ROI_v2.bed --log-path /projects/demultiplex/development/elprep --timed]
2021/10/21 12:07:49 Executing command:
 elprep sfm NA12878.bam NA12878.elprep.bam --mark-duplicates --mark-optical-duplicates NA12878_duplicate_metrics.txt --optical-duplicates-pixel-distance 2500 --bqsr NA12878.recall --reference /references/Hsapiens/hg38/seq/hg38.elfasta --quantize-levels 0 --max-cycle 500 --known-sites dbsnp-151.elsites --target-regions /references/Hsapiens/hg38/coverage/capture_regions/CMGG_WES_analysis_ROI_v2.bed --haplotypecaller NA12878.elprep.g.vcf.gz --sorting-order coordinate --nr-of-threads 10 --timed --log-path /projects/demultiplex/development/elprep --intermediate-files-output-prefix NA12878 --intermediate-files-output-type bam
2021/10/21 12:07:49 Splitting...
2021/10/21 12:12:55 Filtering (phase 1)...
2021/10/21 12:55:34 Filtering (phase 2) and variant calling...
2021/10/21 13:14:29 Merging sam/bam...
2021/10/21 13:18:42 Merging metrics...
2021/10/21 13:18:42 Merge vcf...

Command being timed: "elprep sfm NA12878.bam NA12878.elprep.bam --nr-of-threads 10 --mark-duplicates --mark-optical-duplicates NA12878_duplicate_metrics.txt --optical-duplicates-pixel-distance 2500 --sorting-order coordinate --haplotypecaller NA12878.elprep.g.vcf.gz --bqsr NA12878.recall --reference /references/Hsapiens/hg38/seq/hg38.elfasta --known-sites dbsnp-151.elsites --reference-confidence GVCF --target-regions /references/Hsapiens/hg38/coverage/capture_regions/CMGG_WES_analysis_ROI_v2.bed --log-path /projects/demultiplex/development/elprep --timed"
        User time (seconds): 67783.27
        System time (seconds): 2824.52
        Percent of CPU this job got: 1659%
        Elapsed (wall clock) time (h:mm:ss or m:ss): 1:10:53
        Average shared text size (kbytes): 0
        Average unshared data size (kbytes): 0
        Average stack size (kbytes): 0
        Average total size (kbytes): 0
        Maximum resident set size (kbytes): 45212524
        Average resident set size (kbytes): 0
        Major (requiring I/O) page faults: 0
        Minor (reclaiming a frame) page faults: 391376706
        Voluntary context switches: 41522383
        Involuntary context switches: 1930008
        Swaps: 0
        File system inputs: 0
        File system outputs: 55015496
        Socket messages sent: 0
        Socket messages received: 0
        Signals delivered: 0
        Page size (bytes): 4096
        Exit status: 0