[MLton] factorial of 1,000,000
Mon, 28 Jun 2004 10:10:21 -0700
There was a recent discussion at meme.b9.com about computing factorial
of 1,000,000 iteratively.
I tried it out in MLton on my 1.6GHz machine. It took 207 minutes,
with 2.5% gc time. Here were the gc stats
total allocated: 1,200,666,893,648 bytes
max live: 2,322,468 bytes
max semispace: 64,802,816 bytes
max stack size: 264 bytes
The result was 5,565,709 digits.
For completeness, here's the program that I used.
fun iter (x: IntInf.int, i) =
if x < 2
else iter (x - 1, x * i)
fun fact x = iter (x, 1)
val _ = print (concat [IntInf.toString (fact 1000000), "\n"])