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SQUASH? pcl: Set PARALLEL_MAKE to an empirically determined value

This commit is contained in:
Herb Kuta 2019-05-29 17:19:55 -07:00
parent 1a743abf33
commit cefb65831f
1 changed files with 18 additions and 3 deletions
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21
recipes-extended/pcl/pcl_1.8.1.bb
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@ -45,9 +45,24 @@ FILES_${PN}-dev += "${datadir}/${PN}-1.8/*.cmake"
# High memory needs mentioned in: https://github.com/PointCloudLibrary/pcl/issues/2284 # High memory needs mentioned in: https://github.com/PointCloudLibrary/pcl/issues/2284
# Setting just empty doesn't work, ninja will by default use number of cores available # Setting just empty doesn't work, ninja will by default use number of cores available
# However, quick experiments have shown that it's possible to use up to CEIL(<RAM-in-GB>/5) as the argument to -j without running # However, quick experiments have shown that it's possible to use up to CEIL(<RAM-in-GB>/5) as the argument to -j without running
# out of memory as long as the machine has a few GB of swap spacce => override the setting here by setting # out of memory as long as the machine has a few GB of swap space. If this fails, override it by setting
# PARALLEL_MAKE_pn-pcl in conf/local.conf . # PARALLEL_MAKE_pn-pcl = "-j <A-SMALLER-N>" in conf/local.conf .
PARALLEL_MAKE = "-j1"
# Tried this, but psutil fails to import:
# inherit python3native
# DEPENDS += "python3-psutil-native"
# PARALLEL_MAKE = "-j ${@from psutil import virtual_memory; import math; int(math.ceil(virtual_memory().total / float(1024*1024*1024*5)))}"
def pcl_parallel_make_n():
import math
with open('/proc/meminfo', 'r') as f:
# First line of /proc/meminfo is:
# MemTotal: 65879500 kB
_, phys_mem_kb, _ = f.readline().split()
return int(math.ceil(float(phys_mem_kb)/float(1024*1024*5)))
PARALLEL_MAKE = "-j ${@pcl_parallel_make_n()}"
# Fixes this: # Fixes this:
# | fatal error: stdlib.h: No such file or directory # | fatal error: stdlib.h: No such file or directory