[Date Index] [Thread Index] [Author Index]

Re: Compilation: Avoiding inlining

• To: mathgroup at smc.vnet.net
• Subject: [mg121563] Re: Compilation: Avoiding inlining
• From: David Bailey <dave at removedbailey.co.uk>
• Date: Tue, 20 Sep 2011 06:08:14 -0400 (EDT)
• Delivered-to: l-mathgroup@mail-archive0.wolfram.com
• References: <201109171027.GAA26060@smc.vnet.net> <j57879$jbs$1@smc.vnet.net>

On 19/09/2011 12:14, Oliver Ruebenkoenig wrote:
> On Sat, 17 Sep 2011, DmitryG wrote:
>
>> Hi Oliver,
>>
>> thank you for your response! I am interested now in the systems of
>> equations that are non-vectorizable.


I explored your code a bit, and it would seem that the function cRHS is 
called 2000 times. I wondered if most of the time was being spent in the 
function rather than the DE solving code itself, and it would seem that 
this is probably the case. I tried:

m00;While[m>0,cRHS[0.1,x0];m--;]//AbsoluteTiming

This gave a timing that was little less than the whole computation.

(I actually scaled things up a bit, because I prefer to do timing 
experiments which are scaled to last about 20 secs to minimise jitter 
from other sources.)

David Bailey
http://www.dbaileyconsultancy.co.uk

• References:
  • Re: Compilation: Avoiding inlining
    • From: DmitryG <einschlag@gmail.com>