From: Alexey Tourbin <at@altlinux.ru>
To: sisyphus@altlinux.ru
Subject: [sisyphus] ATLAS vs BLAS performance
Date: Mon, 5 Jun 2006 01:05:46 +0400
Message-ID: <20060604210546.GA18120@localhost.localdomain> (raw)
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Я разобрался, как надо собирать ATLAS.
Вот предварительный benchmark.
Fortran BLAS:
> mm <- matrix(rnorm(10^6), ncol = 10^3)
> system.time(crossprod(mm))
[1] 1.572 0.004 1.580 0.000 0.000
ATLAS w/ SSE2:
> mm <- matrix(rnorm(10^6), ncol = 10^3)
> system.time(crossprod(mm))
[1] 0.344 0.020 0.369 0.000 0.000
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next reply other threads:[~2006-06-04 21:05 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-04 21:05 Alexey Tourbin [this message]
2006-06-04 22:04 ` Ivan Adzhubey
2006-06-04 22:26 ` Alexey Tourbin
2006-06-05 1:17 ` Alexey Tourbin
2006-06-05 2:41 ` Alexey Tourbin
2006-06-05 4:22 ` Valery Pipin
2006-06-05 7:30 ` Alexey Tourbin
2006-06-05 7:45 ` Ivan Adzhubey
2006-06-05 6:19 ` Andrey Khavryuchenko
2006-06-05 7:50 ` Alexey Tourbin
2006-06-05 7:58 ` Andrey Khavryuchenko
2006-06-05 10:11 ` Alexey Tourbin
2006-06-06 11:14 ` Alexey Tourbin
2006-11-24 23:58 ` Alexey Tourbin
2006-06-05 7:53 ` Ivan Adzhubey
2006-06-05 7:57 ` Ivan Adzhubey
2006-06-05 9:36 ` Andrey Khavryuchenko
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