Re: [Boost-users] array alignment in ublas matrices

Subject: Re: [Boost-users] array alignment in ublas matrices
From: petros (pmamales_at_[hidden])
Date: 2011-09-13 13:57:47

Thank you for your response. Will look into it. Are there any examples?
Best Regards,
Petros

-----Original Message----- 
From: Joel Falcou
Sent: Tuesday, September 13, 2011 1:41 PM
To: boost-users_at_[hidden]
Subject: Re: [Boost-users] array alignment in ublas matrices

On 13/09/2011 19:12, petros wrote:
> Hi,
> I am using the ublas matrices with mkl. The documentation of mkl
> suggests/requires that allocated arrays are aligned on 16 byte boundaries.
> The matrix structures within ublas delegate the memory management in the
> std allocator which at the very end reduces to new.
> I know that one way to address this is write my own allocator for the
> unbounded_array that lies on the basis of the storage structures.
> However, this is an error-prone job and it is suggested that this is
> avoided.
> Any other solutions? – hopefully more straightforward ?
> Thank you in advance for your help,
> Petros
> ps: using visual studio 2010 on winn7/visa 64 bit and mkl 10.3.

Boost.SIMD is an upcoming library that provide such facility as part of
its API. Code can be salvaged from here :

https://github.com/MetaScale/nt2/tree/master/modules/boost/simd/sdk/include/boost/simd/sdk/memory

Feel free to ask for details about this.

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