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Groups > linux.debian.bugs.dist > #1224204 > unrolled thread
| Started by | Yiyang Wu <xgreenlandforwyy@gmail.com> |
|---|---|
| First post | 2024-12-16 05:10 +0100 |
| Last post | 2025-01-06 15:10 +0100 |
| Articles | 2 — 2 participants |
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Bug#1090072: linux-image-amd64: Enable P2P and HMM feature for AMDGPU Yiyang Wu <xgreenlandforwyy@gmail.com> - 2024-12-16 05:10 +0100
Bug#1090072: linux-image-amd64: Enable P2P and HMM feature for AMDGPU Uwe Kleine-König <ukleinek@debian.org> - 2025-01-06 15:10 +0100
| From | Yiyang Wu <xgreenlandforwyy@gmail.com> |
|---|---|
| Date | 2024-12-16 05:10 +0100 |
| Subject | Bug#1090072: linux-image-amd64: Enable P2P and HMM feature for AMDGPU |
| Message-ID | <JUaAF-hqrJ-3@gated-at.bofh.it> |
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Package: linux-image-amd64 Version: 6.12.3-1 Severity: wishlist Tags: patch X-Debbugs-Cc: Benda Xu <orv@debian.org> The peer to peer (P2P) data transfer is important for programs that use multi-GPU. The heterogeneous memory management (HMM), is a mechanism to treat CPU memory and GPU memory in a joint address space. It is an essential part of Unified Memory in heterogeneous computing, which frees the developer from manually handling data migration across different types of memories. Data will be automatically transferred and cached into the memory of the compute node. This programming model is gaining popularity, and for AMD GPU and ROCm, cards that support xnack replay can utilize this model if CONFIG_HSA_AMD_SVM=y -- System Information: Debian Release: trixie/sid APT prefers testing APT policy: (500, 'testing'), (100, 'unstable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 6.12.3-amd64 (SMP w/16 CPU threads; PREEMPT) Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.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 linux-image-amd64 depends on: pn linux-image-6.11.10-amd64 <none> pn linux-image-6.12.3-amd64 <none> pn linux-image-6.5.0-5-amd64 <none> linux-image-amd64 recommends no packages. linux-image-amd64 suggests no packages.
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| From | Uwe Kleine-König <ukleinek@debian.org> |
|---|---|
| Date | 2025-01-06 15:10 +0100 |
| Message-ID | <K1VXP-6bIX-1@gated-at.bofh.it> |
| In reply to | #1224204 |
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Control: merge -1 1015871 Hello, On Mon, Dec 16, 2024 at 12:05:23PM +0800, Yiyang Wu wrote: > Package: linux-image-amd64 > Version: 6.12.3-1 > Severity: wishlist > Tags: patch > X-Debbugs-Cc: Benda Xu <orv@debian.org> > > The peer to peer (P2P) data transfer is important for programs that use multi-GPU. > > The heterogeneous memory management (HMM), is a mechanism to treat CPU memory > and GPU memory in a joint address space. It is an essential part of Unified > Memory in heterogeneous computing, which frees the developer from manually > handling data migration across different types of memories. Data will be > automatically transferred and cached into the memory of the compute node. This > programming model is gaining popularity, and for AMD GPU and ROCm, cards that > support xnack replay can utilize this model if CONFIG_HSA_AMD_SVM=y This request came up already in the past, see https://bugs.debian.org/1015871 Back then this looked more like some niche thing that mostly helps people who need a custom kernel anyhow. Does this new bug report mean that things have changed? Best regards Uwe
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