I occasionally got this error while running some mpi programs. I could not find the exact reason. Even when I google it, it seems no relevant explanation of it. By investigating the codes with debugger, I notices some data in the memory are huge, when I correct them, the error information was gone too. Therefore [...]
DeinoMPI is an implementation of MPI-2 for Microsoft Windows. DeinoMPI is a derived work from MPICH2 provided by Argonne National Lab. By starting with the MPICH2 code base DeinoMPI inherits a stable and complete implementation of the MPI-2 standard. DeinoMPI heavily modifies the original code base and does not rely on anything from Argonne National [...]
目前全球有约10亿台计算机，每台按100Wh实际功率计算，总功率为1亿千瓦时。也就是说每小时耗电量为1亿千瓦。按计算机一天工作10小时计算，一天全球消耗总电量为10亿千瓦时。世界超大型水电站（如三峡电站）在汛期全部机组开动发电量不过4亿千瓦时（参见）。意味着我们需要2-3个这样的超大水电站全负荷供电才能满足基本需求。我们知道，建设一个这样的电站要耗费数以亿计的金钱和数十年的人工。但是，如果作为程序员，往往可以轻易地提高编码质量和运行效率以达到节省计算时间的目的，变相地节约了宝贵的能源，有利于保护地球环境。我觉得如果所有程序员都朝这个方向努力，每天节省一个三峡电站的电量是完全可能的。
By default Notepad2 add a .txt extension to the file name when you save a newly created file. For files already having extensions, this will not be done. However, this is sometimes annoying if you often create files which do not use txt as extension although they are actually plain text files. I think this [...]
Useful commands: wait <pid>: wait the background job with specified pid to be finished and return the exit code ( hint: stored in $? ) jobs -p: list the pids of all the background jobs (hint: use for statement of bash to loop over each process) ( sleep 30s; /bin/false ) & : generate a [...]
This is just a rough comparison of the influence of compilers on the performance of lammps code on a VIC3.
