2
data1.dl.r2 = vector() 
for (i in 1:100) { 
if (i==1) { 
    data1.hex = as.h2o(data1) 
} else { 
    data1.hex = nextdata 
} 
    data1.dl = h2o.deeplearning (x=2:1000,y=1,training_frame=data1.hex,nfolds=5,activation="Tanh",hidden=30,seed=5,reproducible=TRUE) 
    data1.dl.pred = h2o.predict(data1.dl,data1.hex) 
    data1.dl.r2[i] = sum((as.matrix(data1.dl.pred)-mean(as.matrix(data1.hex[,1])))^2)/ 
sum((as.matrix(data1.hex[,1])-mean(as.matrix(data1.hex[,1])))^2) # R-squared 

    prevdata = as.matrix(data1.hex) 
    nextpred = as.matrix(h2o.predict(data1.dl,as.h2o(data0[i,]))) 
    colnames(nextpred) = "response" 
    nextdata = as.h2o(rbind(prevdata,cbind(nextpred,data0[i,-1]))) 

    print(i) 
} 

這是我的代碼,包含100個觀察值和1000個特徵的數據集(data1)。 當運行此,它給了我的錯誤消息,在50〜第60次迭代 「h2o包:總集羣內存零點

Error in .h2o.doSafeREST(h2oRestApiVersion = h2oRestApiVersion, urlSuffix = page, : 


ERROR MESSAGE: 

Total input file size of 87.5 KB is much larger than total cluster memory of Zero , please use either a larger cluster or smaller data. 

當我運行‘h20.init()’,它告訴我,總簇存儲器是零。

H2O cluster total nodes: 1 
    H2O cluster total memory: 0.00 GB 
    H2O cluster total cores: 8 
    H2O cluster allowed cores: 8 
    H2O cluster healthy:  TRUE 

所以我不知道爲什麼總集羣存儲是零, 和它爲什麼沒有出問題的早期迭代。

+0

當我關閉R Studio並再次打開時,它顯示3.56GB的羣集總內存。 – user67275

回答

2

您需要重新啓動您的H2O集羣。

嘗試h2o.cluster().shutdown()然後h2o.init()

您還可以通過h2o.init(min_mem_size_GB=8)明確設置分配給H2O的內存,這取決於您的計算機有多少內存。