objref pc
pc = new ParallelContext()

func f() {local s, i
	s = 0
	for i=1,100000 {
		s += $1
	}
	return s
}

{pc.runworker()}

runtime = startsw()
s = 0
for i=1,10 {
	pc.submit("f", i)
}
while (pc.working()) {
	s += pc.retval
}
print "sum = ", s
print "runtime ", startsw() - runtime
{pc.done()}
quit()