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Alessio edited comment on SPARK-15904 at 6/13/16 2:48 PM: ---------------------------------------------------------- If anyone's interested, the dataset I'm working on is freely available from UCI ML Repository (http://archive.ics.uci.edu/ml/datasets/Daily+and+Sports+Activities). I tried just now running the above K-Means for K=9120, with --driver-memory 4G. The full traceback can be found here (https://ghostbin.com/paste/9pu9k). The code is absolutely simple, I don't think there's something wrong with it: sc = SparkContext("local[*]", "Spark K-Means") data = sc.textFile(<my csv dataset path>) parsedData = data.map(lambda line: array([float(x) for x in line.split(',')])) parsedDataNOID=parsedData.map(lambda pattern: pattern[1:]) parsedDataNOID.persist(StorageLevel.MEMORY_AND_DISK) K_CANDIDATES=<python list with 100 values for K> initCentroids=scipy.io.loadmat(<.mat file with initial seeds>) datatmp=numpy.genfromtxt(<my csv dataset path>,delimiter=",") for K in K_CANDIDATES: clusters = KMeans.train(parsedDataNOID, K, maxIterations=2000, runs=1, epsilon=0.0, initialModel = KMeansModel(datatmp[initCentroids['initSeedsA'][0][k_tmp][0]-1,:])) was (Author: purple): If anyone's interested, the dataset I'm working on is freely available from UCI ML Repository (http://archive.ics.uci.edu/ml/datasets/Daily+and+Sports+Activities). I tried just now running the above K-Means for K=9120, with --driver-memory 4G. The full traceback can be found here (https://ghostbin.com/paste/9pu9k). The code is absolutely simple, I don't think there's nothing wrong with it: sc = SparkContext("local[*]", "Spark K-Means") data = sc.textFile(<my csv dataset path>) parsedData = data.map(lambda line: array([float(x) for x in line.split(',')])) parsedDataNOID=parsedData.map(lambda pattern: pattern[1:]) parsedDataNOID.persist(StorageLevel.MEMORY_AND_DISK) K_CANDIDATES=<python list with 100 values for K> initCentroids=scipy.io.loadmat(<.mat file with initial seeds>) datatmp=numpy.genfromtxt(<my csv dataset path>,delimiter=",") for K in K_CANDIDATES: clusters = KMeans.train(parsedDataNOID, K, maxIterations=2000, runs=1, epsilon=0.0, initialModel = KMeansModel(datatmp[initCentroids['initSeedsA'][0][k_tmp][0]-1,:])) > High Memory Pressure using MLlib K-means > ---------------------------------------- > > Key: SPARK-15904 > URL: https://issues.apache.org/jira/browse/SPARK-15904 > Project: Spark > Issue Type: Improvement > Components: MLlib > Affects Versions: 1.6.1 > Environment: Mac OS X 10.11.6beta on Macbook Pro 13" mid-2012. 16GB > of RAM. > Reporter: Alessio > Priority: Minor > > Running MLlib K-Means on a ~400MB dataset (12 partitions), persisted on > Memory and Disk. > Everything's fine, although at the end of K-Means, after the number of > iterations, the cost function value and the running time there's a nice > "Removing RDD <idx> from persistent list" stage. However, during this stage > there's a high memory pressure. Weird, since RDDs are about to be removed. > Full log of this stage: > 16/06/12 20:37:33 INFO clustering.KMeans: Run 0 finished in 14 iterations > 16/06/12 20:37:33 INFO clustering.KMeans: Iterations took 694.544 seconds. > 16/06/12 20:37:33 INFO clustering.KMeans: KMeans converged in 14 iterations. > 16/06/12 20:37:33 INFO clustering.KMeans: The cost for the best run is > 49784.87126751288. > 16/06/12 20:37:33 INFO rdd.MapPartitionsRDD: Removing RDD 781 from > persistence list > 16/06/12 20:37:33 INFO storage.BlockManager: Removing RDD 781 > 16/06/12 20:37:33 INFO rdd.MapPartitionsRDD: Removing RDD 780 from > persistence list > 16/06/12 20:37:33 INFO storage.BlockManager: Removing RDD 780 > I'm running this K-Means on a 16GB machine, with Spark Context as local[*]. > My machine has an i5 hyperthreaded dual-core, thus [*] means 4. > I'm launching this application though spark-submit with --driver-memory 9G -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org