当njobs大于1时，gridsearch输出的行太多

Question

我使用以下代码进行gridsearch，设置njobs = crossvalidation折叠，但是我得到了很多类似下面的行：GridSearchCV(estimator = est,                                cv = crossval_n,                                n_jobs = crossval_n,                                param_grid = param_grid,                                scoring = grid_score,                                verbose = 1000)信息是这样的：Pickling array (shape=(2,), dtype=object).Pickling array (shape=(7,), dtype=object).Pickling array (shape=(5,), dtype=object).Pickling array (shape=(5,), dtype=object).Pickling array (shape=(2,), dtype=object).Memmaping (shape=(300000,), dtype=float64) to old file /dev/shm/joblib_memmaping_pool_31858_140577309572624/31858-140577424627920-252eb20f1c96190cb0ef65643005ff1e.pklMemmaping (shape=(199999,), dtype=int64) to old file /dev/shm/joblib_memmaping_pool_31858_140577309572624/31858-140577424627920-e2ad805d63b492d1bda22f6ecd785fa9.pklPickling array (shape=(100001,), dtype=int64).[CV]  n_estimators=25, loss=deviance, learning_rate=0.05, max_depth=3, score=0.663848252373, total= 4.5min[CV] n_estimators=100, loss=deviance, learning_rate=0.05, max_depth=3 [Parallel(n_jobs=3)]: Done   1 tasks      | elapsed:  4.9minPickling array (shape=(3376,), dtype=object).Memmaping (shape=(73, 300000), dtype=float64) to old file /dev/shm/joblib_memmaping_pool_31858_140577309572624/31858-140577424627920-2a1a398dde29f0da54a999a91072b77b.pklMemmaping (shape=(1, 300000), dtype=int64) to old file /dev/shm/joblib_memmaping_pool_31858_140577309572624/31858-140577424627920-108448b3fbe2af627fc26e0b965874b9.pklMemmaping (shape=(62, 300000), dtype=float64) to old file /dev/shm/joblib_memmaping_pool_31858_140577309572624/31858-140577424627920-32d40c577c413ff0ea04ade1cc62a62e.pkl不确定 1) 信息是什么？2) 如果我得到这个信息有什么错误吗？3）如果不是错误信息，如何禁用将其打印出来？

Answer 1

检查verbose您正在使用的参数。

verbose : integer

    Controls the verbosity: the higher, the more messages.

您正在使用verbose=1000，因此您将在输出中获得调整过程的进度。

更改verbose=0以禁用它。