def schedule(dist,task,node_list):
"""
Simple scheduler. For every appropriate node (Compute node)
finds the sum to the prior nodes
"""
priorities = Scheduler.prepare_priority_list(task,node_list)
min_dist = sys.maxint
min_glob = sys.maxint
min_id = -1
for node in node_list:
if not isinstance(node,Node.ComputeNode):
continue
max_route = sys.maxint()
for prior in priorities:
traf = dist[node.id][prior[0]]*prior[1]
if traf > max_route: # We are searching for maximum traffic on route link
max_route = traf
if max_route < min_glob:
min_glob = max_route
min_id = node.id
# sum += dist[node.id][prior[0]]*prior[1] # the sum of <distance to prior node> * <priority of node>
# sys.stdout.write("For node " + str(node.id) + " distance is " + str(sum) + "\n") # debug line
#if sum < min_dist:
# min_dist = sum
# min_id = node.id
return min_id
def schedule(dist, task, node_list):
"""
Simple scheduler. For every appropriate node (Compute node)
finds the sum to the prior nodes
"""
priorities = Scheduler.prepare_priority_list(task, node_list)
min_dist = sys.maxint
min_glob = sys.maxint
min_id = -1
for node in node_list:
if not isinstance(node, Node.ComputeNode):
continue
max_route = sys.maxint()
for prior in priorities:
traf = dist[node.id][prior[0]] * prior[1]
if traf > max_route: # We are searching for maximum traffic on route link
max_route = traf
if max_route < min_glob:
min_glob = max_route
min_id = node.id
# sum += dist[node.id][prior[0]]*prior[1] # the sum of <distance to prior node> * <priority of node>
# sys.stdout.write("For node " + str(node.id) + " distance is " + str(sum) + "\n") # debug line
#if sum < min_dist:
# min_dist = sum
# min_id = node.id
return min_id
def chooseNode():
if not self.nodes:
return False
least_used_node = None
least_node_amount = maxint()
for node in self.nodes:
if node.instancesAmount() < least_node_amount:
least_used_node = node
least_node_amount = node.instancesAmount()
return least_used_node
#triangleIntersection.py
"""
Jens V Hansen
jensvhansen.com
A triangle class primaily written to check the distance between point 'q' and triangle 'n'.
Which is why the functions return True or False instead of numeric values as in distances.
A basic implementation of a 3D vector is needed to use the clasees.
"""
# import 'myVector' as Veector3
from sys import maxint
global MAX = maxint()
class Edge(object):
def __init__(self, v0, v1):
"""
Structure to hold the references of the edge.
"""
# edge vertices
self.v0 = v0
self.v1 = v1
# edge vector
self.ev = self.v1 - self.v0
def normal(self):
return self.ev.normal()
def length(self):
import sys
import fnmatch
import subprocess
import shutil
# Check the system platform first
platform = sys.platform
print "This is a " + platform + " system"
if platform.startswith('linux'):
messenger_dir = 'mexa64'
elif platform.startswith('darwin'):
messenger_dir = 'mexmaci64'
if platform.startswith('win32'):
# We further need to differniate 32 from 64 bit:
maxint = sys.maxint()
if maxint == 9223372036854775807:
messenger_dir = 'mexw64'
elif maxint == 2147483647:
messenger_dir = 'mexw32'
# Open the configure file and start parsing
config = open(os.path.join(messenger_dir, 'local.cfg'), 'r')
for line in config:
path = line.split('=')
if path[0] == "MATLAB_BIN":
print "Searching for Matlab bin folder in local.cfg ..."
matlab_bin = path[1].rstrip('\r\n')
if matlab_bin == "":
#GAUSSIAN INTEGER import cmath as cm import sys final_div_sum = [0] sum_divi = 0 n = sys.maxint(raw_input( )) divi = [1] def complex_divisor(divi,n,k): for i in range(1,n+1): for l in range(1,n+1): divi = [1] for i in range(2,l+1): # real valued factors if l%i == 0: divi.append(i) print divi #comment this line out
Python 2: x = 0755 # 0开头
Python 3: x = 0o755 # 0o开头
2.long 类型
Python 2有为非浮点数准备的 int 和 long 类型。 int 类型的最大值不能超过 sys.maxint,而且这个最大值是平台相关的。
整数可以通过在数字的末尾附上一个L来定义长整型，显然，它比 int 类型表示的数字范围更大。
Python 3里，只有一种整数类型 int,大多数情况下，它很像Python 2里的长整型。
由于已经不存在两种类型的整数，所以就没有必要使用特殊的语法去区别他们。
由于 long 类型在Python 3的取消,引起以下改变
Python 2 Python 3 说明
① x = 1000000000000L x = 1000000000000 # 十进制的普通整数
② x = 0xFFFFFFFFFFFFL x = 0xFFFFFFFFFFFF # 十六进制的普通整数
③ long(x) int(x) # long()函数没有了。可以使用int()函数强制转换一个变量到整型。
④ type(x) is long type(x) is int # 检查一个变量是否是整型
⑤ isinstance(x, long) isinstance(x, int) # 也可以使用 isinstance()函数来检查数据类型
3.sys.maxint(sys.maxsize)
由于长整型和整型被整合在一起了, sys.maxint常量不再精确。
因为这个值对于检测特定平台的能力还是有用处的，所以它被Python 3保留，并且重命名为 sys.maxsize。
Python 2 Python 3
① from sys import maxint from sys import maxsize # maxint变成了maxsize。
② a_function(sys.maxint) a_function(sys.maxsize) # 所有的sys.maxint都变成了sys.maxsize。
int 是 types.IntType 的代名词
print(id(int)) # 打印如：505210872
import types;print(id(types.IntType)) # 打印如：505210872
高精度的数值类型
float 精度不够高，有时候需要更高精度的类型 decimal
python 支持的是:
from decimal import Decimal