Re: Sparse 0.5.1 RC5 released.

[Dibyendu Majumdar <mobile@majumdar.org.uk>]

Hi Luc,

On 13 August 2017 at 14:18, Dibyendu Majumdar <mobile@majumdar.org.uk> wrote:
> On 13 August 2017 at 14:10, Luc Van Oostenryck
> <luc.vanoostenryck@gmail.com> wrote:
>> On Sun, Aug 13, 2017 at 2:56 PM, Dibyendu Majumdar
>> <mobile@majumdar.org.uk> wrote:
>>> I am merging and testing this in my repository. I notice that after
>>> applying the changes related to killing of BBs - there is a
>>> significant slow down in Sparse.
>>>
>>> Before the merge:
>>>
>>> real: 4.3 minutes
>>> user: 4.1 minutes
>>>
>>> After the merge:
>>>
>>> real: 18.9 minutes
>>> user: 18.7 minutes
>>>
>>> I just noticed this and these are my initial tests. But I thought it
>>> worth letting you know.
>>
> Yes apologies I should have mentioned the test case:
>
> https://github.com/dibyendumajumdar/dmr_c/blob/master/tests/lcc/cq.c
>
> I am checking whether the slowdown is due to some other factor such as:
>
> a) Build options - I need to check whether my build is an optimized
> build or not.

I had optimizations switched off - but with -O2, results are not good either:

Before merge:

real: 1.6 minutes
user: 1.5 minutes

After merge:

real: 8.3 minutes
user: 8.2 minutes

I do have function based iterators so that is another thing to check.

Regards
Dibyendu