add a marker line to tune

Author: SHuang-Broad

wdl/tasks/Alignment/AlignReads.wdl

@@ -50,6 +50,7 @@ task Minimap2 {
     Int desired_cpus = (if('LOCAL'==disk_type) then 32 else 24) * length(reads)
     Int cpus = if max_cpus < desired_cpus then max_cpus else desired_cpus  # WDL 1.0 doesn't have a max(,)....
     Int mem = cpus * (if('LOCAL'==disk_type || longer_ont_read_hint) then 6 else 5)
+    # if mimimap2 OoM, tune the line above
 
     Int mm2_threads = cpus - 2