def SearchTiles_and_Factorize(n):
global globalmergedtiles
global globalcoordinates
global factors_accum
global spcon
spcon = SparkContext("local[4]","Spark_TileSearch_Optimized")
if persisted_tiles == True:
tileintervalsf=open("/home/shrinivaasanka/Krishna_iResearch_OpenSource/GitHub/asfer-github-code/cpp-src/miscellaneous/DiscreteHyperbolicFactorizationUpperbound_TileSearch_Optimized.tileintervals","r")
tileintervalslist=tileintervalsf.read().split("\n")
#print "tileintervalslist=",tileintervalslist
tileintervalslist_accum=spcon.accumulator(tilesintervalslist, VectorAccumulatorParam())
paralleltileintervals=spcon.parallelize(tileintervalslist)
paralleltileintervals.foreach(tilesearch)
else:
factorsfile=open("DiscreteHyperbolicFactorizationUpperbound_TileSearch_Optimized.factors","w")
hardy_ramanujan_ray_shooting_queries(n)
hardy_ramanujan_prime_number_theorem_ray_shooting_queries(n)
baker_harman_pintz_ray_shooting_queries(n)
cramer_ray_shooting_queries(n)
zhang_ray_shooting_queries(n)
factors_accum=spcon.accumulator(factors_of_n, FactorsAccumulatorParam())
#spcon.parallelize(xrange(1,n)).foreach(tilesearch_nonpersistent)
spcon.parallelize(spcon.range(1,n).collect()).foreach(tilesearch_nonpersistent)
print "factors_accum.value = ", factors_accum.value
factors=[]
factordict={}
for f in factors_accum.value:
factors += f
factordict[n]=factors
json.dump(factordict,factorsfile)
return factors
from __future__ import print_function
import sys
from pyspark import SparkContext
from pyspark.streaming import StreamingContext
if __name__ == "__main__":
sc = SparkContext(appName="PythonStreamingNetworkWordCount")
rdd = sc.range(1, 1000)
counts = rdd.map(lambda i: i * 2)
counts.saveAsTextFile("s3://uryyyyyyy-sandbox/py.log")
from pyspark import SparkContext
from pyspark.sql import SQLContext
# setup spark context
from pyspark.sql.types import StructType, StructField, StringType
sc = SparkContext("local", "data_processor")
sqlC = SQLContext(sc)
# create dummy data frames
rdd1 = sc.range(0,10000000).map(lambda x: ("key "+str(x), x)).repartition(100)
rdd2 = sc.range(0,10000).map(lambda x: ("key "+str(x), x)).repartition(10)
# Define schema
schema = StructType([
StructField("Id", StringType(), True),
StructField("Packsize", StringType(), True)
])
schema2 = StructType([
StructField("Id2", StringType(), True),
StructField("Packsize", StringType(), True)
])
df1 = sqlC.createDataFrame(rdd1,schema)
df2 = sqlC.createDataFrame(rdd2,schema2)
print df1.rdd.getNumPartitions()
print df2.rdd.getNumPartitions()
from pyspark import SparkContext
import os
os.environ['SPARK_HOME']='F:/hadoop/spark-2.3.2-bin-hadoop2.7'
os.environ['PYSPARK_PYTHON']='D:/ProgramData/Anaconda3/envs/tfColne/python.exe'
if __name__ == '__main__':
sc = SparkContext('local', 'test')
test_data = sc.range(0, 100)
td = test_data.map(lambda d: (d % 5, d))
ts = td.reduceByKey(lambda a,b: a + b)
dt = sc.range(10)
dm = dt.map(lambda d: (d % 5, d))
dg = dm.reduceByKey(lambda a, b: (a, b))
ds = dg.sortByKey(ascending=False)
print(ts.collect())
print(ds.collect())
print(ts.join(ds).collect())
broad = sc.parallelize([1, 8, 2, 4])
acc = sc.accumulator(0)
broad.foreach(lambda x: acc.add(x))
print(acc.value)
df = changedTypedf.withColumn(
"Literal", F.lit(0)
)
df.withColumn("meta", df.setosa_dbl * 2).show()
df.withColumn("meta", df['setosa_dbl'] * 2).show()
changedTypedf['mittens'] = changedTypedf['setosa_dbl'] * 10
changedTypedf.sum('setosa_dbl')
df_header.take(2)
df_header.head(4)
df_header.head(4)
# Displays the content of the DataFrame to stdout
df.show()
df.assign
result_pdf = df.select("*").toPandas()
df.toPandas()
result_pdf.dtypes
df.write.parquet("output/proto.parquet")
data = spark_context.range(0, 5)
data.write.format("delta").save("/tmp/delta-table")
int(x[0]) - 1, 1.0))
degrees = upper_entries.map(lambda entry: (entry.i, entry.value)).reduceByKey(
lambda a, b: a + b)
W = CoordinateMatrix(upper_entries.union(lower_entries), numCols=N, numRows=N)
# XXX:
laplacian = sys.argv[1]
if laplacian == 'unnormalized':
entries = degrees.map(lambda x: MatrixEntry(x[0], x[0], x[1]))
D = CoordinateMatrix(entries, numCols=N, numRows=N)
L = D.toBlockMatrix().subtract(W.toBlockMatrix()).toCoordinateMatrix()
elif laplacian == 'normalized':
entries = degrees.map(lambda x: MatrixEntry(x[0], x[0], 1 / x[1]))
D_inv = CoordinateMatrix(entries, numCols=N, numRows=N).toBlockMatrix()
I = CoordinateMatrix(sc.range(N).map(lambda i: MatrixEntry(i, i, 1.0)),
numCols=N,
numRows=N).toBlockMatrix()
L = I.subtract(D_inv.multiply(W.toBlockMatrix())).toCoordinateMatrix()
elif laplacian == 'symmetric':
entries = degrees.map(lambda x: MatrixEntry(x[0], x[0], 1 / sqrt(x[1])))
D_invsq = CoordinateMatrix(entries, numCols=N, numRows=N).toBlockMatrix()
I = sc.range(N).map(lambda i: MatrixEntry(i, i, 1.0), N, N)
tmp = D_invsq.multiply(W.toBlockMatrix()).multiply(D_invsq)
L = I.toBlockMatrix().subtract(tmp)
else:
raise ValueError('Unknown type of Laplacian.')
## SVD, and transform from dense matrix to dataframe.
svd = L.toRowMatrix().computeSVD(k=K, computeU=False)
V = svd.V.toArray().tolist()
nexecutors = 4
print(
'Cannot determine number of executors, using default value {}'.format(
nexecutors))
print('\n')
def prox_method(x):
from mod import spark_method
return spark_method(x)
from time import time
start = time()
results = sc.range(nexecutors, numSlices=nexecutors).map(prox_method).collect()
print('Results:')
pp.pprint(results)
print('Result length: {}'.format(len(results)))
print('Duration: {:.2f} s'.format(time() - start))
#print('\nUnique results:')
#print(set(results))
#nums = sc.parallelize([1, 2, 3, 4, 5, 6, 7, 8, 20])
#print(nums.collect())
#sumAndCount = nums.map(lambda x: (x, 1)).fold((0, 0), (lambda x, y: (x[0] + y[0], x[1] + y[1])))
#print(sumAndCount)
from pyspark import SparkContext from pyspark.mllib.random import RandomRDDs from math import hypot import sys sc = SparkContext() # Project Euler Problem 1 print (sc.range(1000).filter(lambda candidate: candidate%3==0 or candidate%5==0).sum()) # Approximating Pi using Monte Carlo integration radius = 1 def dist(p): return hypot(p[0], p[1]) num_samples = int(sys.argv[1]) unit_square = RandomRDDs.uniformVectorRDD(sc, num_samples, 2) hit = unit_square.map(dist).filter(lambda d: d < radius).count() fraction = hit / num_samples print (fraction * (2*radius)**2)
#!/usr/bin/env python3
#-*- coding: utf-8 -*-
import sys
from operator import add
from random import random
from pyspark import SparkContext
def f(_):
x = random() * 2 - 1
y = random() * 2 - 1
return 1 if x**2 + y**2 < 1 else 0
if __name__ == "__main__":
"""
Usage: pi [partitions]
"""
sc = SparkContext(appName="PySpark_Pi")
partitions = int(sys.argv[1]) if len(sys.argv) > 1 else 2
n = 100000 * partitions
count = sc.parallelize(sc.range(1, n + 1), partitions).map(f).reduce(add)
print("Pi is roughly ", 4.0 * count / n)
sc.stop()
# The plastic number, $\rho$, is the unique real solution to
# the cubic equation $x^3 = x + 1$.
# We use it for generating a quasi-random sequence in 2D for
# the initial set of complex numbers later.
rho = ((9 + m.sqrt(69)) / 18)**(1 / 3) + ((9 - m.sqrt(69)) / 18)**(1 / 3)
# Obtain the Spark Context
sc = SparkContext(conf=SparkConf())
print(sc)
# Print configurations.
print(sc.getConf().getAll())
# Create an RDD with 64 elements.
n_rdd = sc.range(1, 2**6 + 1)
# Print how the RDD gets mapped.
print(
n_rdd.map(lambda x: (socket.gethostname(), os.getppid(), os.getpid())).
distinct().collect())
# Mark for cache() in memory
points_rdd = n_rdd.map(lambda n: (n / rho % 1) / 10 +
(n / (rho * rho) % 1) / 10 * 1j).cache()
# Print the total number of partitions
print(points_rdd.getNumPartitions())
# Print the number of elements in each partition
print(points_rdd.glom().map(len).collect())
"""
Purpose:
Date created: 2020-04-19
Contributor(s):
Mark M.
"""
from __future__ import print_function
from pyspark import SparkContext
# from pyspark.sql import SparkSession
# spark = SparkSession.builder.appName("test1").getOrCreate()
sc = SparkContext(appName="matrices1")
rdd = sc.parallelize([
1,
2,
])
sorted(rdd.cartesian(rdd).collect())
n = 10
rng = sc.range(1, n + 1)
sum_ = rng.sum()
print(f"The sum of the numbers from 1 to 10 is: {sum_}")
sc.stop()
