CUDA 编译器，链接 OpenVDB 在 Blender 中查看导出的结果 边界条件 边界条件：初始化 边界条件：添加判断边界的版本 边界条件：仅在第一层额外判断边界条件 进一步改进 VDB 导出：支持导出多个网格，并指定名称 进一步改进 VDB 导出： P-IMPL 模式 进一步改进 VDB 导出： F-IMPL 模式 Blender 渲染结果 改进 改进边界条件：外部边界流出而不是反弹，内部边界可以流出速度 改进边界条件：外部边界流出而不是反弹，内部边界可以流出速度 Blender 中调整一下材质 Blender 中调整一下材质 改进对流：让烟雾随时间逐渐褪色 改进对流：让烟雾随时间逐渐褪色 改进褪色：不是褪色 density ，而是褪色 temperature 改进褪色：不是褪色 density ，而是褪色 temperature 改进褪色：不是单纯地乘以 decayRate ，还和周围环境温度求平均值

pattern is actually used ○ grep -irn “factory” . ● The answer is yes! ● https://github.com/blender/blender ● ● ●Factory Method/Pattern Usage (5/6) 81 ● I dug around a few open source projects to see

915 505 272 878 1059 2886 0 500 1000 1500 2000 2500 3000 3500 Unreal Engine 5 TensorFlow Blender AAA Game 3 AAA Game 2 AAA Game 1 Time in Seconds (Lower is better) VS 17.5 VS 17.7In Visual

函数，从而保证 pool 解 构时会自动等待全部线程执行完毕。 小彭老师快乐吐槽时间 • 多线程、异步、无阻塞、并发，能提升程序响应速度，对现实世界中的软件工程至关重要 。 • 反面教材： blender 在运行物理解算的时候，界面会卡住，算完一帧后窗口才能刷新一遍 ，导致解算过程中基本别想做事，这一定程度上归功于 opengl 原始的单线程设计。 • 正面教材： zeno 可以在解算过程中

77Rewrite; Power Peg Moved, Not Removed 78Did Not Retest Power Peg 79Deploy Version to Support RLP 80Manual Deployment Mistake 81No Review or Test of Deployment 82RLP Goes Live on 7 Servers 83Power Peg Peg in 2003, dead code still around •Refactored code in 2005 ; moved dead code ; test still pass •Manual deployment ; no review ; no tests •Different components had different view of same thing •email Peg in 2003, dead code still around •Refactored code in 2005 ; moved dead code ; test still pass •Manual deployment ; no review ; no tests •Different components had different view of same thing •email

Profiling Zoo holistic (automatic) issues: information overload; profiling overhead (skew) selective (manual) Sampling callstack snapshot probing system-wide automatic (regular intervals) OS kernel events Profiling Zoo holistic (automatic) issues: information overload; profiling overhead (skew) selective (manual) Sampling callstack snapshot probing system-wide automatic (regular intervals) OS kernel events TracyClient.cpp TracyClient.cpp TracyClient.cpp TracyClient.cpp Behold the Tracy Multiverse! (Tracy Manual, Section 2.1.5)18 Tracy integration across shared libraries tracy (shared library) TracyClient

Profiling Zoo holistic (automatic) issues: information overload; profiling overhead (skew) selective (manual) Sampling callstack snapshot probing system-wide automatic (regular intervals) OS kernel events Profiling Zoo holistic (automatic) issues: information overload; profiling overhead (skew) selective (manual) Sampling callstack snapshot probing system-wide automatic (regular intervals) OS kernel events ZoneScoped; ... } ... { ZoneScoped; ... } }23 Tracy manual, Section 3.1 Tracy Zoning 101 int foo() { ZoneScoped; ... if (!spoon) { Zo

PARAPHRASING P2561 "How is this problem solved today? Either: "How is this problem solved today? Either: manual error propagation macros (most libraries e.g. Boost.Outcome) The only things that have nice syntax multiple (possibly failing) values. to multiple (possibly failing) values. Goals: Goals: no macros no manual control �ow declarative expression-oriented style good-looking code e�cient Let's do it with Let's return std::format("{}{}", f, b); }); }); } 37HOW DID WE DO? HOW DID WE DO? No macros? No manual control �ow? Declarative style? Good-looking code? E�cient? 38APPLICATIVE SOLUTION APPLICATIVE

了 了 struct chunk { std: :ptrdiff_t begin; std::ptrdiff_t end; }; auto func (chunk) -> void; auto manual_loop (std: :ptrdiff_t n，std::ptrdiff_t chunk_count) -> void [[assumeCn >= 0)]]; [[assume(chunk_count 一Range adaptorfor dlstributing work across tasks (CZ) ASM comparison > GCC RISC-V 64-bit assembly manual_loop(long，long): jsc-chunk_evenly (long，long): addiji sp,sp,-64 sp,sSp,64 j工 Ia CP and LCD comparison 1o0恒 80 60 40 20 上 manual 1oop jsc: :chunk_evenly() 大 manual loop 时 jsc: :chunk_evenly() 50 40 30 20 10 WE W 和中

Source breaking change (can’t compile 2 as 3) Python 2 Python 3 x = 3/2 x == 2 x == 1.5 Manual migration + tools (2to3, Pylint, Futurize, Modernize, caniusepython3, tox, mypy) 2017: Most Python Source breaking change (can’t compile 2 as 3) Python 2 Python 3 x = 3/2 x == 2 x == 1.5 Manual migration + tools (2to3, Pylint, Futurize, Modernize, caniusepython3, tox, mypy) 2017: Most Python Source breaking change (can’t compile 2 as 3) Python 2 Python 3 x = 3/2 x == 2 x == 1.5 Manual migration + tools (2to3, Pylint, Futurize, Modernize, caniusepython3, tox, mypy) 2017: Most Python