[Scilab-users] Pong contest

[Heinz Nabielek]

From an iMac macOS 10.15.5 (19F101):

...SCALAR RESULT:  Mflops= 2.915 ;  Pi ~ 3.141592 
...ARRAY RESULT:  Mflops= 1.047 ;  Pi ~ 3.141592 

  Model Identifier:	iMac14,3
  Processor Name:	Quad-Core Intel Core i7
  Processor Speed:	3.1 GHz
  Number of Processors:	1
  Total Number of Cores:	4

Heinz
____________________
> On 07.06.2020, at 12:01, Claus Futtrup <cfuttrup at gmail.com> wrote:
> 
> Hi Rafael
> 
> ...SCALAR RESULT:  Mflops= 2.737 ;  Pi ~ 3.141592 
> ...ARRAY RESULT:  Mflops= 1.284 ;  Pi ~ 3.141592
> 
> The machine is a two-year old Lenovo T480, Core i7 8th Gen. Built-in Intel Graphics (no external card)
> 
> /Claus
> 
> On 07-06-2020 09:54, Rafael Guerra wrote:
>> Hello Stéphane et al.,
>>  
>> Would it make sense in this “Pong contest”, in addition to the OS used, to also provide some sort of benchmarking of machine CPU?
>>  
>> Fyi, find below simple test by Gershenfeld (1999), it computes Pi=4*atan(1) by two methods:
>>     Scalar test:  Pi(N)~Sum{i=1:N; 0.5/((i-0.75)*(i-0.25))} 
>>     Array test:   Pi(N)= Pi(N-1) + 0.5/((N-0.75)*(N-0.25))
>>  
>> // Based on benchmarking test in Gershenfeld Mathematical modeling book (1999)
>> // There are 5 floating point operations per step, total 5 Mflop with N=1e6
>> N= 1e6;
>> tic();
>> ps= 0;
>> for i=1:N
>>   ps= ps + 0.5/((i-0.75)*(i-0.25));
>> end
>> dt=toc();
>> printf('...SCALAR RESULT:  Mflops= %4.3f ;  Pi ~ %7.6f \n',5.0/dt,ps);
>>  
>> tic();
>> pv(1)= 0.5/((1-0.75)*(1-0.25));
>> for i=2:N
>>   pv(i)= pv(i-1) + 0.5/((i-0.75)*(i-0.25));
>> end
>> dt=toc();
>> printf('...ARRAY RESULT:  Mflops= %4.3f ;  Pi ~ %7.6f \n',5.0/dt,pv(N));
>>  
>>  
>> PS:
>> ...SCALAR RESULT:  Mflops= 3.489
>> ...ARRAY RESULT:  Mflops= 1.367
>>  
>> Regards,
>> Rafael
>>  
>>  
>> On 05-06-2020 14:48, Stéphane Mottelet wrote:
>> Hello all, 
>> 
>> As you may have noticed, there is now a little game in the Gaphics/Animation section of the demonstrations. As the speed and responsiveness seems to be similar under all platforms, it would be funny to launch a little contest. In the next Scilab version it would be interesting to implement a high score online record, but until then, you can answer this message with the same kind of screenshot I joined, showing you score and just taken after the game end with and with the last dialog on the figure. 
>> 
>> Cheers, 
>> 
>> 
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