The following warnings occurred:
Warning [2] Undefined array key 132859 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 132894 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 132896 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 132920 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 132921 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 132931 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 132933 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 132934 - Line: 275 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 275 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $thread - Line: 295 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 295 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Trying to access array offset on value of type null - Line: 295 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 295 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $fid - Line: 295 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 295 errorHandler->error_callback
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 132896 - Line: 331 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 331 errorHandler->error_callback
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 304 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 132934 - Line: 331 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 331 errorHandler->error_callback
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 304 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined array key 132931 - Line: 331 - File: inc/plugins/threaded_mode.php PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php 331 errorHandler->error_callback
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 332 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 304 ThreadedMode::buildtree
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $theme - Line: 3 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 3 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Trying to access array offset on value of type null - Line: 3 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 3 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $theme - Line: 3 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 3 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Trying to access array offset on value of type null - Line: 3 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 3 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Undefined variable $lang - Line: 5 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 5 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks
Warning [2] Attempt to read property "messages_in_thread" on null - Line: 5 - File: inc/plugins/threaded_mode.php(305) : eval()'d code PHP 8.1.2-1ubuntu2.14 (Linux)
File Line Function
/inc/class_error.php 153 errorHandler->error
/inc/plugins/threaded_mode.php(305) : eval()'d code 5 errorHandler->error_callback
/inc/plugins/threaded_mode.php 305 eval
/inc/plugins/threaded_mode.php 23 ThreadedMode::showthread_threaded
/inc/class_plugins.php 142 threaded_mode_showthread_threaded
/showthread.php 918 pluginSystem->run_hooks





Calculator Benchmark, Faster 50g/HPGCC3 results



#6

Xerxes,

The HPGCC3 developers were kind enough to point out that I didn't compile with optimization (doh!). Furthermore, Claudio Lapilli provided two other versions that run even faster.

New results for publication:

       Structured C     Reg. vars   ARM Assembly

6Mhz 0.007060 0.006133 0.005235
75Mhz 0.000560 0.000484 0.000404
192Mhz 0.000213 0.000192 0.000150

Please also post the 6Mhz (very slow mode) numbers. I think it illustrates that you can get great performance and low battery usage with HPGCC3.

Thanks.

Reg Vars Source:

main()
{
register int x, y, r, s, t, n, Ax;
int a[9];

for (n = 100000; n > 0; --n) {
r = 8;
s = 0;
x = 0;
Ax = 0;
do {
a[x] = Ax;
++x;
Ax = r;
do {
++s;
y = x;
while (y > 1) {
--y;
if (!(t = Ax - a[y]) || x - y == abs(t)) {
y = 0;
while (!--Ax) {
--x;
Ax = a[x];
}
}
}
} while (y != 1);
} while (x != r);
}
return s;
}

ARM Assembly Source:

#define _ASM asm volatile

int benchmark_asm() __attribute__ ((naked));
int benchmark_asm()
{
_ASM("STMDB SP!,{ R1-R8 }");
// 20 R=8
_ASM("MOV R3,#8"); // R3=R
// 30 REM DIM A(R) (DIM used if necessary)
_ASM("SUB SP,SP,R3,LSL #2");
_ASM("SUB SP,SP,#8"); // EXTRA SPACE JUST IN CASE
_ASM("MOV R4,#102400"); // N= APPROX. 100000 ITERATIONS
_ASM("LOOPSTART:");
_ASM("MOV R1,#0"); // R1=X
_ASM("MOV R2,#0"); // R2=Y
_ASM("MOV R0,#0"); // R0=S
_ASM("MOV R6,#0"); // A(X)
_ASM("LINE40:");
//40 IF X=R THEN 180 (140 for all solutions)
_ASM("CMP R1,R3");
_ASM("BEQ LINE180");
//50 X=X+1
_ASM("STR R6,[SP,R1,LSL #2]");
_ASM("ADD R1,R1,#1");
//60 A(X)=R
_ASM("MOV R6,R3");
_ASM("LINE70:");
//70 S=S+1
_ASM("ADD R0,R0,#1");
//80 Y=X
_ASM("MOV R2,R1");
//90 Y=Y-1
_ASM("LINE90:");
_ASM("SUBS R2,R2,#1");
//100 IF Y=0 THEN 40
_ASM("BEQ LINE40");
//110 T=A(X)-A(Y)
_ASM("LDR R7,[SP,R2,LSL #2]");
_ASM("SUBS R7,R6,R7"); // R7=T
//120 IF T=0 THEN 140
_ASM("BEQ LINE140");
//130 IF X-Y<>ABS T THEN 90
_ASM("RSBMI R7,R7,#0"); // ABS(T)
_ASM("SUB R8,R1,R2"); // R8=X-Y
_ASM("CMP R7,R8");
_ASM("BNE LINE90");
_ASM("LINE140:");
//140 A(X)=A(X)-1
_ASM("SUBS R6,R6,#1");
//150 IF A(X)<>0 THEN 70 (<>0 omitted if possible)
_ASM("BNE LINE70");
// 160 X=X-1
_ASM("SUBS R1,R1,#1");
_ASM("LDR R6,[SP,R1,LSL #2]");
//170 IF X<>0 THEN 140 (<>0 omitted if possible)
_ASM("BNE LINE140");
_ASM("LINE180:");
_ASM("SUBS R4,R4,#1");
_ASM("BNE LOOPSTART");
_ASM("ADD SP,SP,#8");
_ASM("ADD SP,SP,R3,LSL #2");
_ASM("LDMIA SP!,{R1-R8}");
_ASM("MOV PC,LR");
}


#7

Surely you're joking, Mr. Feldman!

Are those times in seconds? That's essentially instantaneous!

Wow.


#8

Seconds. To time, 100000 iterations were required.

#9

Quote:
Surely you're joking, Mr. Feldman!

Maybe you were writing in jest, but don't you mean "Feynman"--that great and well-rounded physicist, Richard P. Feynman. I love that book, by the way.

John


#10

Oops. It was early, but yes, that's who I was meaning.

#11

Hello Egan,

Thank you for the results especially the very interesting ARM assembly version. Also thanks to Claudio for his effort to optimize the code.

I have also tested the FX-9860G with RegVars, but there is no difference at all. The compiler optimization seems to be good enough. I have used the unstructured version because it's slightly faster. But on the TI-89 the structured version is a bit faster. This is the reason for having two versions.

For sure Claudio's optimization is justified for more speed, but don't you think it's more accurate to use the original code to be comparable to the other calculators tested with C? So what do think about a compromise to not having too many versions of the same programming language. My suggestion would be using the original code with RegVars. Please let me know if you have a better idea.

Thanks.


#12

So you'll post the RegVar and ASM 50g versions?


#13

I have updated the benchmark as you have suggested including the "very slow mode" results.

Thank you for your numerous contributions. ;-)


Possibly Related Threads…
Thread Author Replies Views Last Post
  How much faster is the HP Prime than the HP 50g ? Michael de Estrada 13 4,162 11-13-2013, 07:38 AM
Last Post: DeboT
  hp prime - sending program results to the stack giancarlo 6 2,023 10-15-2013, 02:00 AM
Last Post: Giancarlo
  HP Prime complex results Javier Goizueta 0 955 10-06-2013, 12:59 PM
Last Post: Javier Goizueta
  HP Prime Solving Nonlinear System of Equations for Complex Results Helge Gabert 11 4,073 09-30-2013, 03:44 AM
Last Post: From Hong Kong
  Yet another benchmark port on the wiki: Savage Pier Aiello 35 9,362 09-26-2013, 03:22 AM
Last Post: Pier Aiello
  A brand new calculator benchmark: "middle square method seed test" Pier Aiello 25 6,761 09-13-2013, 01:58 PM
Last Post: Pier Aiello
  New community-maintained version of "Calculators benchmark: add loop" Pier Aiello 20 5,965 09-12-2013, 02:42 AM
Last Post: Pier Aiello
  Calculator Speed Benchmark (Add Loop) Thomas Chrapkiewicz 2 1,412 01-20-2013, 11:24 AM
Last Post: Thomas Chrapkiewicz
  hp50g: installing hpgcc3 Gjermund Skailand 0 913 06-02-2012, 07:19 AM
Last Post: gjermund skailand
  Why is the 19BII faster than the 17BII(+)? Timo Labrenz 8 2,719 05-03-2012, 08:00 AM
Last Post: Xerxes

Forum Jump: