Re: [Starpu-devel] [Starpu-commits] r5692 - in trunk/src: core core/dependencies datawizard drivers/cpu drivers/cuda drivers/gordon drivers/opencl

[Xavier Lacoste <xavier.lacoste@inria.fr>]

Le 13 mars 2012 à 18:56, Cyril Roelandt a écrit :

> On 02/24/2012 02:55 PM, Xavier Lacoste wrote:
>> 
>> Le 24 févr. 2012 à 14:47, Cyril Roelandt a écrit :
>> 
>>> On 02/24/2012 11:01 AM, Xavier Lacoste wrote:
>>>> Hello again,
>>>> 
>>>> I did a smaller example creating an empty sparse matrix and doing a fake 
>>>> factorization using StarPU.
>>>> The problem is that for the moment it doesn't reproduce the bug.
>>>> Can you remember me the define I gave you in config.in file in STARPU 
>>>> section ?
>>>> 
>>> 
>>> Hello,
>>> 
>>> Here is the content of the StarPU section in config.in:
>>> 
>>> CCPASTIX   := -L/opt/cluster/plafrim-dev/hwloc/1.3.1/lib $(CCPASTIX) 
>>> `pkg-config libstarpu --cflags` -DWITH_STARPU -DSTARPU_BLOCKTAB_GEMM 
>>> -DSTARPU_BLOCKTAB_SELFCOPY
>>> EXTRALIB   := $(EXTRALIB) `pkg-config libstarpu --libs --static`
>>> 
>>> 
>>> Cyril Roelandt.
>> 
>> Ok it's what I remembered... Maybe my example (11x11 matrix) is not big 
>> enough to reproduce the bug... I don't know...
> 
> 
> I see. It's probably quite hard to write a very simple program that 
> reproduces this issue. Using the exact same code you sent me, do you think 
> we could use an input file representing a smaller matrix than shipsec5.rsa 
> ? The thing is, we are trying to run helgrind on your code, but the data 
> seems big enough to prevent it from completing.
> 
> Cyril Roelandt.

Mis-replied to you instead of starpu-devel :

> The code is working on an other machine so I tried to update StarPU, hoping 
> that it was fixed, sadly it's not.
> I cleaned some of the StarPU code in PaStiX if you want I can give you a 
> newer version...
> The problem is that I don't really know how to simply generate a valid 
> sparse matrix so I couldn't go bigger than 11x11 matrix for the example I 
> tried to write...
> For the input file you can use matrix/small.rsa which is smaller 
> (orsirr.rua does not crash, -mm matrix/young4c.mtc neither) you can also 
> try with -lap <size> which will create a laplacian of the given size.
> 
> 
> Thanks
> 
> XL.

A little precision, matrix/small.rsa only works with LDLT Factorzation (in 
the main example if you have API_FACT_LLT, change it to API_FACT_LDLT) If you 
need any help tell me.