On the other hand, some C++ compilers are getting _better_ results for
numeric code than C compilers, due to aggressive template optimizations.
You might look at www.boost.org to see if they have anything useful.
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/George V. Reilly mailto:[EMAIL PROTECTED]
Read my blog: http://georgevreilly.com/blog
Vijay M wrote:
Ben,
Thanks for the tip. Performance is very important for the code i am
writing but thought that a OO programming platform would ease the
development a little bit. Oh well. Guess i do have to do it in C or
Fortran.
I imagined that .NET 2.0 would bring in lots of performance improvements
in the framework or that's what i remember reading in one of the blogs at
MSDN. But like you said, a procedural language will definitely be faster
than any of the OOP languages, anytime !
Thanks for all the help guys.
On Fri, 8 Jul 2005 12:47:26 +1000, Ben Kloosterman
<[EMAIL PROTECTED]> wrote:
If you are doing lots of iterations and care about performance you are
probably best of writing in C . I once converted a compression program
>from C to C++ and the performance halved because of the class call
overhead (even trying to maximise in lining) .
Ben
-----Original Message-----
From: Unmoderated discussion of advanced .NET topics.
[mailto:ADVANCED-
[EMAIL PROTECTED] On Behalf Of Vijay Mahadevan
Sent: Friday, 8 July 2005 12:38 PM
To: [email protected]
Subject: Re: [ADVANCED-DOTNET] Is C++ better over .NET Math library ?
Dixon, Thanks for the link. The article was useful but very broad
based on all scientific applications. It has some good tips on
maximizing and optimising the memory used in a virtual environment
while using arrays, vectors and matrices. Though it is part of what i
need, it doesn't answer my question entirely. I am also looking for
improving performance in Math section of .NET libraries and if it can
be made to perform comparably to C++.
William, Math.NET is a general mathematical library to perform
operations of wide range. I already had a look at the Math.NET code
and think that the library is not designed with speed in mind but to
be a helper for applications that need to utilize some of the advanced
math functions.
Here is something that interested me.
Extreme Optimization Mathematics Library for .NET
http://www.extremeoptimization.com/Mathematics/Performance.aspx
It is a commercial product but a look and an option to change the code
would be much more helpful.
Has anyone dealt with Vectors and Matrices extensively in any of your
projects ? Do you have a C# implementation of the same and can you
redirect me to a place where there is any info on that ?!
Anyway, thanks a lot for the replies guys !
On 7/7/05, William Bartholomew <[EMAIL PROTECTED]> wrote:
You may want to look at:
http://www.cdrnet.net/projects/nmath/
On 7/8/05, Vijay M <[EMAIL PROTECTED]> wrote:
Hi everyone.
I currently have a numerical simulation code working in MATLAB.
The
code
is for a scientific application and the complexity involved till
now
has
not been much. The simulation is based on solving a non-linear
system
which involves lots of iterations, the primary method being
Newton's
method or Fixed point method. Since the complexity has been
minimal,
MATLAB did support all the requirements but the speed was an
issue.
Moving on, the next set of requirements involves heavy computation
with
over millions of iterations. I am concerned about the usage of
MATLAB
for
this scenario and would like to move on to a faster platform. I
first
considered C++ and then C#. I have worked on .NET for 2 years but
havent
done much work on the Math side of the framework.
Now is there a specific reason to choose C++ over .NET for such an
application ? Speed being a important consideration, what would
you
guys
suggest from your personal experience ?
I have lots of calculations with vectors and matrices. So i am
also
looking for a good implementation of BLAS/LAPACK in C# (If .NET
works
better !) with comparable performance to its native predecessor !
Anyone
know any ??
Although i do believe benchmarks are useless without the
parameters,
all
of them do suggest that VC++ is much better than VC#. Intuitively
i
guessed that but are there any specific compiler options to
optimize
the
execution of certain math operations in C# to maximize the
performance
?
Sorry for such a long background on what i was doing but felt that
it
was
necessary. Thanks for any help you guys can provide.
-Vijay
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Regards,
William D. Bartholomew
http://blog.bartholomew.id.au/
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