HP Prime vs HP71 benchmark
01-20-2017, 08:35 PM
Post: #1
 KeithB Senior Member Posts: 335 Joined: Jan 2017
HP Prime vs HP71 benchmark
I finished my random Pi program and compared the Prime and HP71.

Here is the prime program:
Code:
 EXPORT PITWO() BEGIN H:=0; T:=0; RANDSEED(1); S:=Ticks; WHILE 1 DO T:=T+1; X:=RANDOM()^2+RANDOM()^2; IF X<= 1 THEN H:=H+1; END; IF T MOD 10000 = 0 THEN E:= TICKS-S; PRINT("T:"+T+" PI:"+4*H/T+" E:"+E); END; END; END;

Basically you generate two random numbers and see if it is within the radius of a circle. The ratio of the number of points inside the circle and all the points is pi/4.

For 50,000 pairs:
HP71: Pi=3.14592; Time: 8370 seconds
Prime: Pi=3.14592; Time 8.732 seconds

The prime was 960 times faster than the HP71, which I guess is not really a surprise, given the clock ratio is about 640. (Unlike the HP71, I cannot get an exact clock speed for my prime - no peek() function). The calculations appear to be identical - even to the random numbers generated.
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 Messages In This Thread HP Prime vs HP71 benchmark - KeithB - 01-20-2017 08:35 PM RE: HP Prime vs HP71 benchmark - Erwin - 01-20-2017, 10:35 PM RE: HP Prime vs HP71 benchmark - KeithB - 01-20-2017, 10:57 PM RE: HP Prime vs HP71 benchmark - KeithB - 01-23-2017, 05:38 PM RE: HP Prime vs HP71 benchmark - cyrille de brĂ©bisson - 01-24-2017, 08:00 AM RE: HP Prime vs HP71 benchmark - KeithB - 01-24-2017, 03:45 PM RE: HP Prime vs HP71 benchmark - KeithB - 01-24-2017, 04:32 PM RE: HP Prime vs HP71 benchmark - toml_12953 - 01-24-2017, 05:48 PM RE: HP Prime vs HP71 benchmark - KeithB - 01-24-2017, 06:13 PM RE: HP Prime vs HP71 benchmark - toml_12953 - 01-24-2017, 08:08 PM RE: HP Prime vs HP71 benchmark - cyrille de brĂ©bisson - 01-25-2017, 06:25 AM RE: HP Prime vs HP71 benchmark - Paul Dale - 01-25-2017, 06:26 AM RE: HP Prime vs HP71 benchmark - KeithB - 01-25-2017, 03:38 PM

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