239 lines
8.0 KiB
Python
Executable File
239 lines
8.0 KiB
Python
Executable File
#
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# Copyright (c) 2013-2015 Wind River Systems, Inc.
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#
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# The right to copy, distribute, modify, or otherwise make use
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# of this software may be licensed only pursuant to the terms
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# of an applicable Wind River license agreement.
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from django.utils.translation import ugettext_lazy as _
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PLATFORM_CPU_TYPE = "Platform"
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VSWITCH_CPU_TYPE = "Vswitch"
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SHARED_CPU_TYPE = "Shared"
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VMS_CPU_TYPE = "VMs"
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NONE_CPU_TYPE = "None"
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CPU_TYPE_LIST = [PLATFORM_CPU_TYPE, VSWITCH_CPU_TYPE,
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SHARED_CPU_TYPE, VMS_CPU_TYPE,
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NONE_CPU_TYPE]
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PLATFORM_CPU_TYPE_FORMAT = _("Platform")
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VSWITCH_CPU_TYPE_FORMAT = _("vSwitch")
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SHARED_CPU_TYPE_FORMAT = _("Shared")
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VMS_CPU_TYPE_FORMAT = _("VMs")
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NONE_CPU_TYPE_FORMAT = _("None")
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CPU_TYPE_FORMATS = {PLATFORM_CPU_TYPE: PLATFORM_CPU_TYPE_FORMAT,
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VSWITCH_CPU_TYPE: VSWITCH_CPU_TYPE_FORMAT,
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SHARED_CPU_TYPE: SHARED_CPU_TYPE_FORMAT,
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VMS_CPU_TYPE: VMS_CPU_TYPE_FORMAT,
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NONE_CPU_TYPE: NONE_CPU_TYPE_FORMAT}
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class CpuFunction(object):
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def __init__(self, function):
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self.allocated_function = function
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self.socket_cores = {}
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self.socket_cores_number = {}
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class CpuProfile(object):
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class CpuConfigure(object):
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def __init__(self):
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self.platform = 0
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self.vswitch = 0
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self.shared = 0
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self.vms = 0
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self.numa_node = 0
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# cpus is a list of icpu sorted by numa_node, core and thread
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# if not sorted, provide nodes list so it can be sorted here
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def __init__(self, cpus, nodes=None):
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if nodes:
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cpus = CpuProfile.sort_cpu_by_numa_node(cpus, nodes)
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cores = []
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self.number_of_cpu = 0
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self.cores_per_cpu = 0
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self.hyper_thread = False
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self.processors = []
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cur_processor = None
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for cpu in cpus:
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key = '{0}-{1}'.format(cpu.numa_node, cpu.core)
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if key not in cores:
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cores.append(key)
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else:
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self.hyper_thread = True
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continue
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if cur_processor is None \
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or cur_processor.numa_node != cpu.numa_node:
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cur_processor = CpuProfile.CpuConfigure()
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cur_processor.numa_node = cpu.numa_node
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self.processors.append(cur_processor)
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if cpu.allocated_function == PLATFORM_CPU_TYPE:
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cur_processor.platform += 1
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elif cpu.allocated_function == VSWITCH_CPU_TYPE:
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cur_processor.vswitch += 1
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elif cpu.allocated_function == SHARED_CPU_TYPE:
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cur_processor.shared += 1
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elif cpu.allocated_function == VMS_CPU_TYPE:
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cur_processor.vms += 1
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self.cores_per_cpu = len(cores)
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self.number_of_cpu = len(self.processors)
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@staticmethod
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def sort_cpu_by_numa_node(cpus, nodes):
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newlist = []
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for node in nodes:
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for cpu in cpus:
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if cpu.numa_node == node.numa_node:
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newlist.append(cpu)
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return newlist
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class HostCpuProfile(CpuProfile):
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def __init__(self, personality, cpus, nodes=None):
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super(HostCpuProfile, self).__init__(cpus, nodes)
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self.personality = personality
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# see if a cpu profile is applicable to this host
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def profile_applicable(self, profile):
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if self.number_of_cpu == profile.number_of_cpu and \
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self.cores_per_cpu == profile.cores_per_cpu:
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return self.check_profile_core_functions(profile)
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else:
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return False
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return not True
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def check_profile_core_functions(self, profile):
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platform_cores = 0
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vswitch_cores = 0
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shared_cores = 0
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vm_cores = 0
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for cpu in profile.processors:
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platform_cores += cpu.platform
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vswitch_cores += cpu.vswitch
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shared_cores += cpu.shared
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vm_cores += cpu.vms
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result = True
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if platform_cores == 0:
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result = False
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elif 'compute' in self.personality and vswitch_cores == 0:
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result = False
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elif 'compute' in self.personality and vm_cores == 0:
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result = False
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return result
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def compress_range(c_list):
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c_list.append(999)
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c_list.sort()
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c_sep = ""
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c_item = ""
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c_str = ""
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pn = 0
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for n in c_list:
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if not c_item:
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c_item = "%s" % n
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else:
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if n > (pn + 1):
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if int(pn) == int(c_item):
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c_str = "%s%s%s" % (c_str, c_sep, c_item)
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else:
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c_str = "%s%s%s-%s" % (c_str, c_sep, c_item, pn)
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c_sep = ","
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c_item = "%s" % n
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pn = n
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return c_str
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def restructure_host_cpu_data(host):
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host.core_assignment = []
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if host.cpus:
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host.cpu_model = host.cpus[0].cpu_model
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host.sockets = len(host.nodes)
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host.hyperthreading = "No"
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host.physical_cores = {}
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core_assignment = {}
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number_of_cores = {}
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for cpu in host.cpus:
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if cpu.numa_node not in host.physical_cores:
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host.physical_cores[cpu.numa_node] = 0
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if cpu.thread == 0:
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host.physical_cores[cpu.numa_node] += 1
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elif cpu.thread > 0:
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host.hyperthreading = "Yes"
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if cpu.allocated_function is None:
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cpu.allocated_function = NONE_CPU_TYPE
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if cpu.allocated_function not in core_assignment:
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core_assignment[cpu.allocated_function] = {}
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number_of_cores[cpu.allocated_function] = {}
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if cpu.numa_node not in core_assignment[cpu.allocated_function]:
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core_assignment[cpu.allocated_function][cpu.numa_node] = [
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int(cpu.cpu)]
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number_of_cores[cpu.allocated_function][cpu.numa_node] = 1
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else:
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core_assignment[cpu.allocated_function][cpu.numa_node].append(
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int(cpu.cpu))
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number_of_cores[cpu.allocated_function][cpu.numa_node] += 1
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for f in CPU_TYPE_LIST:
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cpufunction = CpuFunction(f)
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if f in core_assignment:
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host.core_assignment.append(cpufunction)
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for s, cores in core_assignment[f].items():
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cpufunction.socket_cores[s] = compress_range(cores)
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cpufunction.socket_cores_number[s] = number_of_cores[f][s]
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else:
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if (f == PLATFORM_CPU_TYPE or
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(hasattr(host, 'subfunctions') and
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'compute' in host.subfunctions)):
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if f != NONE_CPU_TYPE:
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host.core_assignment.append(cpufunction)
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for s in range(0, len(host.nodes)):
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cpufunction.socket_cores[s] = ""
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cpufunction.socket_cores_number[s] = 0
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def check_core_functions(personality, icpus):
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platform_cores = 0
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vswitch_cores = 0
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shared_vcpu_cores = 0
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vm_cores = 0
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for cpu in icpus:
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allocated_function = cpu.allocated_function
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if allocated_function == PLATFORM_CPU_TYPE:
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platform_cores += 1
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elif allocated_function == VSWITCH_CPU_TYPE:
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vswitch_cores += 1
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elif allocated_function == SHARED_CPU_TYPE:
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shared_vcpu_cores += 1
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elif allocated_function == VMS_CPU_TYPE:
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vm_cores += 1
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# No limiations for shared_vcpu cores
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error_string = ""
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if platform_cores == 0:
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error_string = "There must be at least one" \
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" core for %s." % PLATFORM_CPU_TYPE_FORMAT
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elif 'compute' in personality and vswitch_cores == 0:
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error_string = "There must be at least one" \
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" core for %s." % VSWITCH_CPU_TYPE_FORMAT
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elif 'compute' in personality and vm_cores == 0:
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error_string = "There must be at least one" \
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" core for %s." % VMS_CPU_TYPE_FORMAT
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return error_string
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