Removed references to BlueGene/Q in core Spack

lib/spack/spack/architecture.py

@@ -6,7 +6,7 @@
 """
 This module contains all the elements that are required to create an
 architecture object. These include, the target processor, the operating system,
-and the architecture platform (i.e. cray, darwin, linux, bgq, etc) classes.
+and the architecture platform (i.e. cray, darwin, linux, etc) classes.
 
 On a multiple architecture machine, the architecture spec field can be set to
 build a package against any target and operating system that is present on the

lib/spack/spack/cmd/help.py

@@ -46,7 +46,7 @@
       @B{variant=value1,value2,value3}  set multi-value <variant> values
 
     architecture variants:
-      @m{platform=platform}             linux, darwin, cray, bgq, etc.
+      @m{platform=platform}             linux, darwin, cray, etc.
       @m{os=operating_system}           specific <operating_system>
       @m{target=target}                 specific <target> processor
       @m{arch=platform-os-target}       shortcut for all three above

lib/spack/spack/operating_systems/cnk.py

-# Copyright 2013-2020 Lawrence Livermore National Security, LLC and other
-# Spack Project Developers. See the top-level COPYRIGHT file for details.
-#
-# SPDX-License-Identifier: (Apache-2.0 OR MIT)
-
-from spack.architecture import OperatingSystem
-
-
-class Cnk(OperatingSystem):
-    """ Compute Node Kernel (CNK) is the node level operating system for
-    the IBM Blue Gene series of supercomputers. The compute nodes of the
-    Blue Gene family of supercomputers run CNK, a lightweight kernel that
-    runs on each node and supports one application running for one user
-    on that node."""
-
-    def __init__(self):
-        name = 'cnk'
-        version = '1'
-        super(Cnk, self).__init__(name, version)
-
-    def __str__(self):
-        return self.name

lib/spack/spack/platforms/bgq.py

-# Copyright 2013-2020 Lawrence Livermore National Security, LLC and other
-# Spack Project Developers. See the top-level COPYRIGHT file for details.
-#
-# SPDX-License-Identifier: (Apache-2.0 OR MIT)
-
-import os
-from spack.architecture import Platform, Target
-from spack.operating_systems.linux_distro import LinuxDistro
-from spack.operating_systems.cnk import Cnk
-
-
-class Bgq(Platform):
-    priority    = 30
-    front_end   = 'power7'
-    back_end    = 'ppc64'
-    default     = 'ppc64'
-
-    def __init__(self):
-        ''' IBM Blue Gene/Q system platform.'''
-
-        super(Bgq, self).__init__('bgq')
-
-        self.add_target(self.front_end, Target(self.front_end))
-        self.add_target(self.back_end, Target(self.back_end))
-
-        front_distro = LinuxDistro()
-        back_distro = Cnk()
-
-        self.front_os = str(front_distro)
-        self.back_os = str(back_distro)
-        self.default_os = self.back_os
-
-        self.add_operating_system(str(front_distro), front_distro)
-        self.add_operating_system(str(back_distro), back_distro)
-
-    @classmethod
-    def detect(cls):
-        return os.path.exists('/bgsys')

lib/spack/spack/test/architecture.py

@@ -15,7 +15,6 @@
 from spack.spec import Spec
 from spack.platforms.cray import Cray
 from spack.platforms.linux import Linux
-from spack.platforms.bgq import Bgq
 from spack.platforms.darwin import Darwin
 
 
@@ -42,8 +41,6 @@ def test_platform():
     output_platform_class = spack.architecture.real_platform()
     if os.path.exists('/opt/cray/pe'):
         my_platform_class = Cray()
-    elif os.path.exists('/bgsys'):
-        my_platform_class = Bgq()
     elif 'Linux' in py_platform.system():
         my_platform_class = Linux()
     elif 'Darwin' in py_platform.system():

lib/spack/spack/test/data/targets/bgq-rhel6-power7

-processor	: 0
-cpu		: POWER7 (architected), altivec supported
-clock		: 3720.000000MHz
-revision	: 2.1 (pvr 003f 0201)

lib/spack/spack/test/llnl/util/cpu.py

@@ -37,7 +37,6 @@
     'darwin-mojave-ivybridge',
     'darwin-mojave-haswell',
     'darwin-mojave-skylake',
-    'bgq-rhel6-power7'
 ])
 def expected_target(request, monkeypatch):
     cpu = llnl.util.cpu
@@ -49,7 +48,7 @@ def expected_target(request, monkeypatch):
     )
 
     # Monkeypatch for linux
-    if platform in ('linux', 'bgq'):
+    if platform == 'linux':
         monkeypatch.setattr(cpu.detect.platform, 'system', lambda: 'Linux')
 
         @contextlib.contextmanager