OilfieldToolsNet/opm-core
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Build on systems that don't have /proc mounted

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If we are building in a VM which doesn't have /proc mounted, then it is
most likely that this is done on a shared server; we revert to building
for a single processor.
This commit is contained in:
Roland Kaufmann 2013-01-21 23:43:34 +01:00
parent 52e0c6ceba
commit 03e71967c5
1 changed files with 5 additions and 1 deletions
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6
GNUmakefile
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@ -5,7 +5,11 @@
# figure out the number of processors from the system, add one and round
# to nearest integer. this is the maximum number of processes we want running
# at the same time (one for each core and one stuck on I/O)
PROCS:=$(shell echo "("$$(grep -P -c '^processor\t:' /proc/cpuinfo)+1")"/1 | bc)
# if we are running this is a VM, then /proc won't be mounted and we revert
# to single CPU processing
CPUINFO:=/proc/cpuinfo
NUM_CPUS:=$(shell test -r $(CPUINFO) && grep -P -c '^processor\t:' $(CPUINFO) || echo 0)
PROCS:=$(shell echo "("$(NUM_CPUS)+1")"/1 | bc)
# use these utilities if they are available
IONICE:=$(shell test -x "$$(which ionice)" && echo ionice -c2 -n7)