Saturday 13 October 2007

Benchmarks: Java vs C (Part 4)

Here are the promised benchmarks, running random-based WEP on input numbers of, respectively, 100, 1000 and 10000 bits.
If anyone would care to (and has the patience to) extend the tables, feel free to send me results!
Result: Java is, very approximately, an order of magnitude, only, slower than C.

tiggatoo:~/math/wec james$ time java we2tpr2 < P109.in.2.txt
[109]
[1]
base#0
elapsed=0s factor=3 A=645264517869175453037177387327
base#10746
elapsed=43s factor=104124649 A=245093880973395622884386051056621
2077756847362348863128179
duration: 43 seconds


real 0m46.195s
user 0m5.185s
sys 0m0.510s

tiggatoo:~/math/wec james$ time ./factorize3.gmp -P109 -T10748 3
P109 T10748

real 0m7.176s
user 0m0.793s
sys 0m0.011s

tiggatoo:~/math/wec james$ time java we2tpr2 < P1279.in.2.txt
[1279]
[1]
base#0
elapsed=2s factor=3 A=530978962560898025744780713800683
base#11
elapsed=13s factor=706009 A=1243358263022091534365334367195221
^Cse#100
real 2m34.366s
user 0m17.542s
sys 0m0.222s

tiggatoo:~/math/wec james$ time ./factorize3.gmp -P1279 -T114 3 706009
P1279 T114

real 0m29.889s
user 0m3.344s
sys 0m0.022s

tiggatoo:~/math/wec james$ time java we2tpr2 < P11213.in.2.txt
[11213]
[1]
base#0
elapsed=1510s factor=3 A=93613194278166973511368466002199
^Cse#2
real 45m19.926s
user 5m14.923s
sys 0m2.640s

tiggatoo:~/math/wec james$ time ./factorize3.gmp -P11213 -T3 3
P11213 T3

real 5m44.733s
user 0m40.864s
sys 0m0.247s

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