Ascend950DT L2 带宽定为 7.5TB/s (读写各自独享) #39
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Ascend950DT 的 L2 带宽按 7.5TB/s, 读写各自独享 7.5TB/s (issue#38 落地时白皮书未分档, 曾沿用 950PR 的 5.2TB/s 待标定)。
改动
hardware/ascend950dt.py: 三个 DT SKU (ASCEND950DT/_C32/_C28)bw_l2 = 7.5e12; 文档串同步更新;bw_l2单字段本就是"读口/写口各自独享"语义 (L2 重复读段与 Fixpipe→L2 写互不竞争, 分开计账, 见timing.py::assemble_timingissue#23 口径);testsTestIssue38/test_issue39 锁数值: DT 三档 bw_l2=7.5e12, PR 两档 5.2e12; 派生bw_l2_pc = 7.5e12/36等。影响面
仅 DT 规格的
t_mte2_l2与t_fixpipe(驻留 L2 时) 按 7.5/5.2 加速; 默认规格 (950PR) 不变 → examples 0 diff、压力回归行为不变。已完成并推送 (commit
8e784a7,Fix #39)。落地
hardware/ascend950dt.py:ASCEND950DT/_C32/_C28三档bw_l2 = 7.5e12(7.5TB/s, 读写各自独享), 文档串同步更新;bw_l2单字段本就是"读口/写口各自独享"语义 —— L2 重复读段 (读口) 与 Fixpipe→L2 写 (写口) 分开计账互不竞争 (timing.py::assemble_timing, issue#23 口径);验证
bw_l2_pc=7.5e12/36派生、S_A 场景 DT fixpipe 端到端 = output/7.5e12);闭环。