相关疑难解决方法(0)

我在 R 中使用 xgb.cv 和 xgboost。但是，它不能并行工作

我的示例代码如下

library(xgboost)
library(parallel)
param <- list("objective" = "reg:logistic"
          , "eval_metric" = "logloss"
          ,"nthread" = 8
          ,"bst:eta" = .025
          ,"bst:max_depth" = 3
          ,"lambda" = 1
          ,"lambda_bias" = 0
          ,"alpha" = .8
          ,"min_child_weight" = 3
          ,"subsample" = .9
          ,"colsample_bytree" = .6)
bst.cv3 = xgb.cv(param=param, data = x, label = y,
             nfold = 3, nrounds=cv.nround, missing = NA
             ,prediction = TRUE)

但是，上面的代码不起作用。我必须做些什么才能使它们平行？

我在 xgboost 网站和 github 上找到了这个

1. https://github.com/dmlc/xgboost/blob/master/doc/build.md#building-on-osx

2. https://github.com/dmlc/xgboost/issues/276

但是，我无法运行

brew install clang-omp

或者

brew install gcc …