From owner-freebsd-ppc@freebsd.org Sat May 9 22:03:29 2020 Return-Path: Delivered-To: freebsd-ppc@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 915222F7070 for ; Sat, 9 May 2020 22:03:29 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from freefall.freebsd.org (freefall.freebsd.org [96.47.72.132]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "freefall.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 49KLmx3Nlhz4Ntv for ; Sat, 9 May 2020 22:03:29 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by freefall.freebsd.org (Postfix) id 659F0F325; Sat, 9 May 2020 22:03:29 +0000 (UTC) Delivered-To: powerpc@localmail.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits)) (Client CN "mx1.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by freefall.freebsd.org (Postfix) with ESMTPS id 45629F324 for ; Sat, 9 May 2020 22:03:29 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 49KLmx0F34z4Nts for ; Sat, 9 May 2020 22:03:29 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 03A4222C08 for ; Sat, 9 May 2020 22:03:29 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 049M3SA7008602 for ; Sat, 9 May 2020 22:03:28 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 049M3Skx008601 for powerpc@FreeBSD.org; Sat, 9 May 2020 22:03:28 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: powerpc@FreeBSD.org Subject: [Bug 246194] math/blis: pacify portlint, add test target, optimize for power9 Date: Sat, 09 May 2020 22:03:29 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Ports & Packages X-Bugzilla-Component: Individual Port(s) X-Bugzilla-Version: Latest X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: pkubaj@FreeBSD.org X-Bugzilla-Status: In Progress X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: jmd@freebsd.org X-Bugzilla-Flags: maintainer-feedback? X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-ppc@freebsd.org X-Mailman-Version: 2.1.32 Precedence: list List-Id: Porting FreeBSD to the PowerPC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 09 May 2020 22:03:29 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D246194 --- Comment #2 from Piotr Kubaj --- FreeBSD supports all IBM POWER chips from the first PPC970 (in Macs G5) up = to the latest POWER9 and also Freescale's ppc64 chips found in embedded device= s. So yes, optimizing for POWER9 will make it more useful to POWER9 users. It = will also make this port useless on all earlier generations, but: 1) since nothing depends on this port, optimizing to POWER9 will only be relevant to people directly using this port on powerpc64 older than POWER9,= not to someone using some reverse dependency (because there are none), 2) I think people using software strictly for scientific computations tend = to use the latest available hardware because of power usage improvements. I do= n't think anyone will use their old PowerMac G5 with this port. Regarding complicating this port, on e.g. ARM we build generic binaries, but per https://github.com/flame/blis/blob/master/config_registry, there are two armv7-optimized variants and three aarch64-optimized variants, depending on= the actual CPU. For amd64, there are overall 11 possible variants (optimized for specific CPUs). This is why I proposed this port getting flavours, that would make it possi= ble for users to install their preferred version. If you ask about POWER and BGQ in the above link, AFAIK this is IBM Blue Ge= ne which uses custom PowerPC chips and support for it is not available in Free= BSD anyway. --=20 You are receiving this mail because: You are on the CC list for the bug.=