core.py 10.0 KB
Newer Older
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
# Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

from __future__ import print_function

17
import site
18 19 20
import sys
import os

21 22 23 24 25 26 27 28 29 30 31 32 33 34
core_suffix = 'so'
if os.name == 'nt':
    core_suffix = 'pyd'

has_avx_core = False
has_noavx_core = False

current_path = os.path.abspath(os.path.dirname(__file__))
if os.path.exists(current_path + os.sep + 'core_avx.' + core_suffix):
    has_avx_core = True

if os.path.exists(current_path + os.sep + 'core_noavx.' + core_suffix):
    has_noavx_core = True

35 36
try:
    if os.name == 'nt':
37
        third_lib_path = current_path + os.sep + '..' + os.sep + 'libs'
38 39
        os.environ['path'] = third_lib_path + ';' + os.environ['path']
        sys.path.insert(0, third_lib_path)
40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59

except ImportError as e:
    from .. import compat as cpt
    if os.name == 'nt':
        executable_path = os.path.abspath(os.path.dirname(sys.executable))
        raise ImportError(
            """NOTE: You may need to run \"set PATH=%s;%%PATH%%\"
        if you encounters \"DLL load failed\" errors. If you have python
        installed in other directory, replace \"%s\" with your own
        directory. The original error is: \n %s""" %
            (executable_path, executable_path, cpt.get_exception_message(e)))
    else:
        raise ImportError(
            """NOTE: You may need to run \"export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH\"
        if you encounters \"libmkldnn.so not found\" errors. If you have python
        installed in other directory, replace \"/usr/local/lib\" with your own
        directory. The original error is: \n""" + cpt.get_exception_message(e))
except Exception as e:
    raise e

T
tensor-tang 已提交
60

T
tensor-tang 已提交
61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77
def avx_supported():
    """
    Whether current system(Linux, MacOS, Windows) is supported with AVX.
    """
    import platform
    from .. import compat as cpt
    sysstr = platform.system().lower()
    has_avx = False
    if sysstr == 'linux':
        try:
            has_avx = os.popen('cat /proc/cpuinfo | grep -i avx').read() != ''
        except Exception as e:
            sys.stderr.write('Can not get the AVX flag from /proc/cpuinfo.\n'
                             'The original error is: %s\n' %
                             cpt.get_exception_message(e))
        return has_avx
    elif sysstr == 'darwin':
T
tensor-tang 已提交
78 79
        try:
            has_avx = os.popen(
T
tensor-tang 已提交
80
                'sysctl machdep.cpu.features | grep -i avx').read() != ''
T
tensor-tang 已提交
81 82
        except Exception as e:
            sys.stderr.write(
T
tensor-tang 已提交
83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98
                'Can not get the AVX flag from machdep.cpu.features.\n'
                'The original error is: %s\n' % cpt.get_exception_message(e))
        if not has_avx:
            try:
                has_avx = os.popen(
                    'sysctl machdep.cpu.leaf7_features | grep -i avx').read(
                    ) != ''
            except Exception as e:
                sys.stderr.write(
                    'Can not get the AVX flag from machdep.cpu.leaf7_features.\n'
                    'The original error is: %s\n' %
                    cpt.get_exception_message(e))
        return has_avx
    elif sysstr == 'windows':
        import ctypes
        ONE_PAGE = ctypes.c_size_t(0x1000)
T
tensor-tang 已提交
99

T
tensor-tang 已提交
100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165
        def asm_func(code_str, restype=ctypes.c_uint32, argtypes=()):
            # Call the code_str as a function
            # Alloc 1 page to ensure the protection
            pfnVirtualAlloc = ctypes.windll.kernel32.VirtualAlloc
            pfnVirtualAlloc.restype = ctypes.c_void_p
            MEM_COMMIT = ctypes.c_ulong(0x1000)
            PAGE_READWRITE = ctypes.c_ulong(0x4)
            address = pfnVirtualAlloc(None, ONE_PAGE, MEM_COMMIT,
                                      PAGE_READWRITE)
            if not address:
                raise Exception("Failed to VirtualAlloc")

            # Copy the code into the memory segment
            memmove = ctypes.CFUNCTYPE(ctypes.c_void_p, ctypes.c_void_p,
                                       ctypes.c_void_p,
                                       ctypes.c_size_t)(ctypes._memmove_addr)
            if memmove(address, code_str, len(code_str)) < 0:
                raise Exception("Failed to memmove")

            # Enable execute permissions
            PAGE_EXECUTE = ctypes.c_ulong(0x10)
            pfnVirtualProtect = ctypes.windll.kernel32.VirtualProtect
            res = pfnVirtualProtect(
                ctypes.c_void_p(address), ONE_PAGE, PAGE_EXECUTE,
                ctypes.byref(ctypes.c_ulong(0)))
            if not res:
                raise Exception("Failed VirtualProtect")

            # Flush instruction cache
            pfnGetCurrentProcess = ctypes.windll.kernel32.GetCurrentProcess
            pfnGetCurrentProcess.restype = ctypes.c_void_p
            prochandle = ctypes.c_void_p(pfnGetCurrentProcess())
            res = ctypes.windll.kernel32.FlushInstructionCache(
                prochandle, ctypes.c_void_p(address), ONE_PAGE)
            if not res:
                raise Exception("Failed FlushInstructionCache")

            # Cast the memory to function
            functype = ctypes.CFUNCTYPE(restype, *argtypes)
            func = functype(address)
            return func, address

        # http://en.wikipedia.org/wiki/CPUID#EAX.3D1:_Processor_Info_and_Feature_Bits
        # mov eax,0x1; cpuid; mov cx, ax; ret
        code_str = b"\xB8\x01\x00\x00\x00\x0f\xa2\x89\xC8\xC3"
        avx_bit = 28
        retval = 0
        try:
            # Convert the code_str into a function that returns uint
            func, address = asm_func(code_str)
            retval = func()
            ctypes.windll.kernel32.VirtualFree(
                ctypes.c_void_p(address), ctypes.c_size_t(0), ONE_PAGE)
        except Exception as e:
            sys.stderr.write('Failed getting the AVX flag on Windows.\n'
                             'The original error is: %s\n' %
                             cpt.get_exception_message(e))
        return (retval & (1 << avx_bit)) > 0
    else:
        sys.stderr.write('Do not get AVX flag on %s\n' % sysstr)
        return False


load_noavx = False

if avx_supported():
166 167 168 169 170 171 172
    try:
        from .core_avx import *
        from .core_avx import __doc__, __file__, __name__, __package__
        from .core_avx import __unittest_throw_exception__
        from .core_avx import _append_python_callable_object_and_return_id
        from .core_avx import _cleanup, _Scope
        from .core_avx import _get_use_default_grad_op_desc_maker_ops
173
        from .core_avx import _get_all_register_op_kernels
174 175 176 177
        from .core_avx import _is_program_version_supported
        from .core_avx import _set_eager_deletion_mode
        from .core_avx import _set_fuse_parameter_group_size
        from .core_avx import _set_fuse_parameter_memory_size
Z
Zeng Jinle 已提交
178 179
        from .core_avx import _is_dygraph_debug_enabled
        from .core_avx import _dygraph_debug_level
180
        from .core_avx import _switch_tracer
181
        from .core_avx import _set_paddle_lib_path
H
hong 已提交
182 183 184 185
        from .core_avx import _save_static_dict
        from .core_avx import _load_static_dict
        from .core_avx import _save_dygraph_dict
        from .core_avx import _load_dygraph_dict
186
        from .core_avx import _create_loaded_parameter
T
tensor-tang 已提交
187
    except Exception as e:
188 189 190
        if has_avx_core:
            raise e
        else:
T
tensor-tang 已提交
191
            from .. import compat as cpt
192 193 194
            sys.stderr.write(
                'WARNING: Do not have avx core. You may not build with AVX, '
                'but AVX is supported on local machine.\n You could build paddle '
T
tensor-tang 已提交
195 196
                'WITH_AVX=ON to get better performance.\n'
                'The original error is: %s\n' % cpt.get_exception_message(e))
197
            load_noavx = True
198 199 200 201 202 203 204 205 206 207 208
else:
    load_noavx = True

if load_noavx:
    try:
        from .core_noavx import *
        from .core_noavx import __doc__, __file__, __name__, __package__
        from .core_noavx import __unittest_throw_exception__
        from .core_noavx import _append_python_callable_object_and_return_id
        from .core_noavx import _cleanup, _Scope
        from .core_noavx import _get_use_default_grad_op_desc_maker_ops
209
        from .core_noavx import _get_all_register_op_kernels
210 211 212 213
        from .core_noavx import _is_program_version_supported
        from .core_noavx import _set_eager_deletion_mode
        from .core_noavx import _set_fuse_parameter_group_size
        from .core_noavx import _set_fuse_parameter_memory_size
Z
Zeng Jinle 已提交
214 215
        from .core_noavx import _is_dygraph_debug_enabled
        from .core_noavx import _dygraph_debug_level
216
        from .core_noavx import _switch_tracer
217
        from .core_noavx import _set_paddle_lib_path
H
hong 已提交
218 219 220 221
        from .core_noavx import _save_static_dict
        from .core_noavx import _load_static_dict
        from .core_noavx import _save_dygraph_dict
        from .core_noavx import _load_dygraph_dict
222
        from .core_noavx import _create_loaded_parameter
T
tensor-tang 已提交
223
    except Exception as e:
224 225 226 227 228
        if has_noavx_core:
            sys.stderr.write(
                'Error: Can not import noavx core while this file exists ' +
                current_path + os.sep + 'core_noavx.' + core_suffix + '\n')
        raise e
229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247


# set paddle lib path
def set_paddle_lib_path():
    site_dirs = site.getsitepackages() if hasattr(
        site,
        'getsitepackages') else [x for x in sys.path if 'site-packages' in x]
    for site_dir in site_dirs:
        lib_dir = os.path.sep.join([site_dir, 'paddle', 'libs'])
        if os.path.exists(lib_dir):
            _set_paddle_lib_path(lib_dir)
            return
    if hasattr(site, 'USER_SITE'):
        lib_dir = os.path.sep.join([site.USER_SITE, 'paddle', 'libs'])
        if os.path.exists(lib_dir):
            _set_paddle_lib_path(lib_dir)


set_paddle_lib_path()