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Bug#1065596: gcc-12-offload-nvptx: offloading fails due to unsupported sm_35 default arch

From	Giacomo Mulas <giacomo.mulas@inaf.it>
Newsgroups	linux.debian.bugs.dist
Subject	Bug#1065596: gcc-12-offload-nvptx: offloading fails due to unsupported sm_35 default arch
Date	2024-03-07 09:10 +0100
Message-ID	<IfgZb-eZbt-3@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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Package: gcc-12-offload-nvptx
Version: 12.3.0-15
Severity: normal

Dear Maintainer,

current versions of ptxas dropped support for sm_35, yet gcc-12-offload-nvptx uses that as the default, if unspecified. I can still compile openmp code offloaded to nvptx, but I have to explicitly add something like -foffload-options=nvptx-none="-march=sm_53" to override the default target arch. Please fix this, or make the default configurable so that one does not have to always specify it on the command line.
I am not sure this should be fixed in gcc-12-offload-nvptx or in nvptx-tools, feel free to reassign the bug, if appropriate.

Thanks in advance, best regards
Giacomo Mulas

-- System Information:
Debian Release: trixie/sid
  APT prefers unstable
  APT policy: (401, 'unstable'), (10, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.7.7-amd64 (SMP w/12 CPU threads; PREEMPT)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=it_IT.UTF-8, LC_CTYPE=it_IT.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages gcc-12-offload-nvptx depends on:
ii  gcc-12                 12.3.0-15
ii  gcc-12-base            12.3.0-15
ii  libc6                  2.37-15.1
ii  libc6-dev              2.37-15.1
ii  libgmp10               2:6.3.0+dfsg-2+b1
ii  libgomp-plugin-nvptx1  14-20240303-1
ii  libmpc3                1.3.1-1+b2
ii  libmpfr6               4.2.1-1+b1
ii  libzstd1               1.5.5+dfsg2-2
ii  nvptx-tools            0.20230904-1
ii  zlib1g                 1:1.3.dfsg-3.1

gcc-12-offload-nvptx recommends no packages.

gcc-12-offload-nvptx suggests no packages.

-- no debconf information

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Bug#1065596: gcc-12-offload-nvptx: offloading fails due to unsupported sm_35 default arch Giacomo Mulas <giacomo.mulas@inaf.it> - 2024-03-07 09:10 +0100

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