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Re: SSE2(/AVX) and alignment issues [message #30947 is a reply to message #30943]

Sat, 29 January 2011 02:07

Novo
Messages: 1433
Registered: December 2006

Ultimate Contributor

mirek wrote on Fri, 28 January 2011 18:03

This is not a question. The question is whether _regular_ 'new' should return 16-byte aligned values or not. (And later, with AVX, 32, then maybe in 4 more years 64 etc...)

As long as we agree that allocating SSE2 stuff with 'new' is not a regular thing, we are at option 2..

Mirek

I'm voting for 16-byte aligned new. This will make life simple. And U++ is all about making life simple.

In an ideal world I'd like to see an allocator, which can allocate memory with a given alignment of power of two, compile time changing of alignment of 'new', and data structures which can adapt to different memory alignment.

Regards,
Novo

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[Message index]

		SSE2(/AVX) and alignment issues By: mirek on Fri, 28 January 2011 10:55
		Re: SSE2(/AVX) and alignment issues By: tojocky on Fri, 28 January 2011 13:48
		Re: SSE2(/AVX) and alignment issues By: cbpporter on Fri, 28 January 2011 13:55
		Re: SSE2(/AVX) and alignment issues By: Didier on Fri, 28 January 2011 18:43
		Re: SSE2(/AVX) and alignment issues By: mirek on Sat, 29 January 2011 00:05
		Re: SSE2(/AVX) and alignment issues By: mirek on Fri, 28 January 2011 23:59
		Re: SSE2(/AVX) and alignment issues By: Novo on Fri, 28 January 2011 21:53
		Re: SSE2(/AVX) and alignment issues By: mirek on Sat, 29 January 2011 00:03
		Re: SSE2(/AVX) and alignment issues By: Novo on Sat, 29 January 2011 02:07
		Re: SSE2(/AVX) and alignment issues By: tojocky on Sat, 29 January 2011 09:23
		Re: SSE2(/AVX) and alignment issues By: mirek on Sat, 29 January 2011 20:29
		Re: SSE2(/AVX) and alignment issues By: tojocky on Sun, 30 January 2011 11:34
		Re: SSE2(/AVX) and alignment issues By: mirek on Sun, 30 January 2011 11:51
		Re: SSE2(/AVX) and alignment issues By: tojocky on Sun, 30 January 2011 16:52
		Re: SSE2(/AVX) and alignment issues By: mirek on Sun, 30 January 2011 18:24
		Re: SSE2(/AVX) and alignment issues By: Novo on Sun, 30 January 2011 19:35
		Re: SSE2(/AVX) and alignment issues By: mirek on Sun, 30 January 2011 20:08
		Re: SSE2(/AVX) and alignment issues By: Novo on Sun, 30 January 2011 20:50
		Re: SSE2(/AVX) and alignment issues By: dolik.rce on Sun, 30 January 2011 21:48
		Re: SSE2(/AVX) and alignment issues By: tojocky on Sun, 30 January 2011 22:03

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