기록

2년뒤의 내가 또 헤맬게 뻔해서 적어두는 메모 2년만에 scala를 써야 할 일이 있어서 이것저것 건드리다보니 분명 2주전까지는 잘만 찾아가던 경로가 꼬였다 아마 정석대로 해결하려면 https://stackoverflow.com/questions/70609825/downloading-metals-vscode-scala-extension-failed-with-the-following-spawn-c Downloading Metals (Vscode Scala extension) failed with the following: spawn C:\Program Files (x86)\Java\jdk1.8.0_144\bin\bin\ja I'm trying to run a Scala program on the vscod..

틀린 내용 있을 수 있습니다 지적 환영 TODO System call implementation - read, write, exec, wait, remove, filesize, seek, tell ^^.. pintos/src/userprog/syscall.c의 스위치문에 마저 케이스를 완성해주고, 아래에 함수 뼈대도 만들어준다. 당연히 헤더파일에도 적어줌. 사실 저번 프로젝트때 여기까지는 해두고 안쓰는건 주석처리해두고 내서 주석만 없애주면 됐다.. 아주 칭찬해 정말 그럼 이제 필요한 파일들을 열어둬야한다(편의를 위해) ppt를 읽어보자 filesys/filesys.h, filesys/file.h, lib/syscall-nr.h을 참조할것, 그렇지만 modify는 필요없다(아직까진-^^;;;)솔직히 그렇게..

틀린 내용 있을 수 있습니다 지적 환영 2-1에서 구현해야 할 syscall는 halt, exit, create, open, close, write src/lib/user/syscall.c를 참고하여 각 함수들로 보내는 값들을 먼저 적어준다 argument의 개수에 따라 syscall0, syscall1 등으로 나눠져있는걸 확인할 수 있는데, 프로젝트 ppt에 따르면, 1: argument is located in esp+1 2: arguments are located in esp+4 (arg0), esp+5 (arg1) 3: arguments are located in esp+5 (arg0), esp+6 (arg1), esp+7 (arg2) 이를 참고하여 적어준다 예를 들어 halt의 경우 `passi..

1. 질문 1 C​onstant memory size on a GPU is in direct relation to the number of streaming multiprocessors (SMs). F​alse T​his is the correct answer. Based on the GPU device, there is a fixed maximum amount of constant memory that can be allocated, which is not based on the number of SMs. 2. S​hared memory sizes for GPU devices has always been larger than 128 MB. F​alse T​his is true because shared..

1. 질문 1 T​he first CUDA-compatible Nvidia GPU devices had 256 KB of global memory and now has 2 TB of global memory. False t​he first CUDA cards had at a minimum 256MB of global memory and now have around 4GB on the high-end. 2. 질문 2 W​hich of the following are Nvidia GPU architectures? T​esla T​his architecture was mostly used from 2008 to 2010. A​mpere T​his is the architecture that started to..

1. 질문 1 Which statement is not true about the syntax below: kernel(args) T​he value(s) in args, can only be the name(s) of a kernel(s). T​his is false as the value(s) that args represents are arguments to the kernel. 2. 질문 2 I​f you would like a 2-dimensional data/execution mapping of threads in your blocks for your kernel, which of the following would calculate the index of the thread and data?..

1. 질문 1 It is preferred for compilation of C/C++ that the javac compiler is used. False This is correct because the preferred cross compilers for C/C++ are gcc and g++. 2. 질문 2 Which keyword is used as part of Runtime API kernels to indicate that the function is available for execution on the GPU and called from CPU code? __global__ CUDA __global__ keyword indicates that the function can be call..

1. 질문 1 By comparison, integrated GPUs use less heat than dedicated GPUs and share system memory directly with the CPU. True Integrated GPUs are less powerful and use a lower wattage. Another feature of integrated GPUs is that they share system memory with the host machine’s CPU. 2. 질문 2 Nvidia GPUs CUDA is developed for Nvidia hardware. 3. 질문 3 There is no way in the Windows OS to determine whi..

1. 질문 1 T​o start a thread using the C++ standard library, which syntax should be utilized? s​td::thread newThread(function_name) newThread is a variable name and this uses the std::thread class's constructorm, which implicitly starts a new thread. 2. 질문 2 D​etaching a thread makes it execute completely independent of the current program, even if the program is stopped? False Detach still keeps ..

1. 질문 1 T​he Python 3 threading and multiprocessing libraries implement the same programming interface? True. Both the threading and multiprocessing implement the same functions, though the impact on the hardware is different. 2. 질문 2 U​sing threading, programs can acheive the same capabilities as with multiprocessing, including networking or outside of program context? False. Both parts of the ..