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AttentonV2EX 第 216475 号会员，加入于 2017-02-21 17:00:14 +08:00 |
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99 天前 回复了 ChipWat 创建的主题 › 程序员 › mac mini 24g 大模型推理怎么样 |
@unidotnet 14b 即使是 fp16 也只是大概 28G 左右，int4 怎么可能要 40G
2023-08-14 20:41:04 +08:00 回复了 Attenton 创建的主题 › C++ › c++的单线程 mutex 问题 |
@geelaw 感谢
2023-08-14 20:15:37 +08:00 回复了 Attenton 创建的主题 › C++ › c++的单线程 mutex 问题 |
@geelaw 感谢，这个标准的定义可以在哪看？
2023-08-14 20:09:54 +08:00 回复了 Attenton 创建的主题 › C++ › c++的单线程 mutex 问题 |
@ysc3839 嗯嗯，我也找到了，感谢
2023-08-14 20:07:09 +08:00 回复了 Attenton 创建的主题 › C++ › c++的单线程 mutex 问题 |
If lock is called by a thread that already owns the mutex, the behavior is undefined: for example, the program may deadlock. An implementation that can detect the invalid usage is encouraged to throw a std::system_error with error condition resource_deadlock_would_occur instead of deadlocking.
If the mutex is currently locked by the same thread calling this function, it produces a deadlock (with undefined behavior).
是个 undefined behavior ，不能这样使用，结贴😓
Reference:
https://en.cppreference.com/w/cpp/thread/mutex/lock
https://cplusplus.com/reference/mutex/mutex/lock/
If the mutex is currently locked by the same thread calling this function, it produces a deadlock (with undefined behavior).
是个 undefined behavior ，不能这样使用，结贴😓
Reference:
https://en.cppreference.com/w/cpp/thread/mutex/lock
https://cplusplus.com/reference/mutex/mutex/lock/
2023-08-14 19:58:32 +08:00 回复了 Attenton 创建的主题 › C++ › c++的单线程 mutex 问题 |
@iwdmb
(base) root@ubuntu:/home# ./a.out
n = 5
n = 4
n = 3
n = 2
n = 1
n = 0
(base) root@ubuntu:/home# g++ --version
g++ (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
以上是我的执行结果，没搞懂是哪的问题
(base) root@ubuntu:/home# ./a.out
n = 5
n = 4
n = 3
n = 2
n = 1
n = 0
(base) root@ubuntu:/home# g++ --version
g++ (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
Copyright (C) 2017 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
以上是我的执行结果，没搞懂是哪的问题
2023-08-14 19:51:01 +08:00 回复了 Attenton 创建的主题 › C++ › c++的单线程 mutex 问题 |
补充：CmakeLists.txt 里面没有添加任何编译选项，cmake 版本是 3.18 ， 用的 c++ 17
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