> Armadillo would be faster.
> GSL would be more reliable and wider used.
Eigen may be another good alternative for C++.
- Rhys
Subject: [Help-gsl] GSL performance compared to C++ alternatives such as
Armadillo
Hello all,
First of this is not a flame post, I would like to use GSL as linear algebra
library for Neural Network training, so this would involve calculating hessian
matrices, normal matrix and vector operations etc
Hello all,
First of this is not a flame post, I would like to use GSL as linear
algebra library for Neural Network training, so this would involve
calculating hessian matrices, normal matrix and vector operations etc... I
was curious as to how does GSL compares to C++ alternatives such as
Armadill
I know that its all "just RAM". What I wanted to say (but did not) was that
I've seen code become much faster when stuff is allocated on the stack but
that is because compilers can sometimes do better "magic" in such cases.
I did measure running time with a loop that reuses a minimizer and the
res
On 7 October 2013 22:02, onefire wrote:
> Sam Mason wrote:
> "I tried this technique with the ODE solvers in the GSL and it gave me
> about 5% overall performance improvement so I dropped it from my code,
> it was a fiddle to maintain and the user would barely notice the
> difference. I was doing
"I tried this technique with the ODE solvers in the GSL and it gave me
about 5% overall performance improvement so I dropped it from my code,
it was a fiddle to maintain and the user would barely notice the
difference. I was doing quite a lot of other things, so maybe if your
overall time is domin
Hi,
On 7 October 2013 18:22, onefire wrote:
> One, which I like, is that the routines give the user low-level control
> over their progress in the sense that you can create an object, manually
> iterate and observe their progress. I prefer this over having a single
> function that does the work u
If there is a chance of a patch getting accepted I will certainly submit it
if I have one.
I took a look at the code in the multimin directory last night (the last
problem affects other parts of the library but my example was about the
multidimensional minimizer, so I figured I would start there).
> Rhys, I did try to use views. They do not help because the gsl routines
> allocate vectors internally and there is not much that I can do about it...
> except for maybe hacking gsl and changing gsl_vector_alloc myself.
If from hacking around you happen to restructure the API so that a
clean work
Rhys, I did try to use views. They do not help because the gsl routines
allocate vectors internally and there is not much that I can do about it...
except for maybe hacking gsl and changing gsl_vector_alloc myself.
"The main target of a library like GSL is an inherent consistency of its
objects an
I write between the lines.
On Oct 6, 2013, at 10:04 PM, onefire wrote:
> I am aware of those. I tried the following:
> 1) Call gsl_set_error_handler_off() to turn off the error handler
> 2) Compile with -DHAVE_INLINE and -DGSL_RANGE_CHECK_OFF
> 3) Link to a different cblas (actually I tried op
I am aware of those. I tried the following:
1) Call gsl_set_error_handler_off() to turn off the error handler
2) Compile with -DHAVE_INLINE and -DGSL_RANGE_CHECK_OFF
3) Link to a different cblas (actually I tried openblas, mkl and gslcblas).
However, my most interesting experiment was to modify m
Hi Gilbaerto,
congrats on your performance results!
A first guess of the worse performance of the gsl library would be exception
throwing. The GSL is made for 'users' and this means, that a user has to be
informed about the kind of exception he encounters. This can be left out if you
have you
Hi all,
I am creating a personal library for my C++ projects and to evaluate its
performance I decided to compare it to gsl and, to my surprise, my library
is much faster than gsl in many cases. For example, my Nelder-Mead
implementation can be 5 or 10 faster for some functions.
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