atlas

问题 I singed up freely at mongodb Atlas and created cluster now I want to know how can I create database and connect to that using robomongo? 回答1: 1) (Atlas Mongodb console)First of all click on ALLOW ACCESS FROM ANYWHERE (see in below image) and put some random IP address , don't click on Add Current IP Address otherwise it will not connect with robomongo . 2) Now open robomongo ,select connection Tab and then select type Direct Connection , and put your primary cluster in Address [you can get

问题 I found that using one of BLAS/ATLAS/MKL/OPENBLAS will give improvement on speed in R. However, will it still improve the R Package that is written in C or C++? for example, R package Glmnet is implemented in FORTRAN and R package rpart is implemented in C++. Will it just installing BLAS/...etc will improve the execution time? or do we have to rebuild (building new C code) the package based on BLAS/...etc? 回答1: It is frequently stated, including in a comment here, that "you have to recompile

问题 I am trying to install numpy with OpenBLAS , however I am at loss as to how the site.cfg file needs to be written. When the installation procedure was followed the installation completed without errors, however there is performance degradation on increasing the number of threads used by OpenBLAS from 1 (controlled by the environment variable OMP_NUM_THREADS). I am not sure if the OpenBLAS integration has been perfect. Could any one provide a site.cfg file to achieve the same. P.S.: OpenBLAS