Exemplo n.º 1
0
    def __init__(self, params, learning_rate=1e-3, beta1=0.9, beta2=0.999, eps=1e-8, use_locking=False,
                 use_nesterov=False, weight_decay=0.0, loss_scale=1.0):
        super(LazyAdam, self).__init__(learning_rate, params, weight_decay, loss_scale)
        _check_param_value(beta1, beta2, eps, weight_decay, self.cls_name)
        validator.check_value_type("use_locking", use_locking, [bool], self.cls_name)
        validator.check_value_type("use_nesterov", use_nesterov, [bool], self.cls_name)

        self.beta1 = Tensor(beta1, mstype.float32)
        self.beta2 = Tensor(beta2, mstype.float32)
        self.beta1_power = Parameter(initializer(1, [1], mstype.float32), name="beta1_power")
        self.beta2_power = Parameter(initializer(1, [1], mstype.float32), name="beta2_power")
        self.eps = Tensor(eps, mstype.float32)
        self.use_nesterov = use_nesterov
        self.use_locking = use_locking
        self._is_device = True
        self.moment1 = self.parameters.clone(prefix="moment1", init='zeros')
        self.moment2 = self.parameters.clone(prefix="moment2", init='zeros')

        self.hyper_map = C.HyperMap()
        self.opt = P.Adam(use_locking, use_nesterov)
        self.sparse_opt = P.FusedSparseLazyAdam(use_locking, use_nesterov)
        self.sparse_opt.add_prim_attr("primitive_target", "CPU")
        self._ps_pull = P.Pull()
        self._ps_push = P.Push("Adam", [0, 1, 2])
        self._ps_push.add_prim_attr("use_nesterov", use_nesterov)
Exemplo n.º 2
0
    def __init__(self,
                 params,
                 learning_rate=1e-3,
                 beta1=0.9,
                 beta2=0.999,
                 eps=1e-8,
                 use_locking=False,
                 use_nesterov=False,
                 weight_decay=0.0,
                 loss_scale=1.0):
        super(Adam, self).__init__(learning_rate, params, weight_decay,
                                   loss_scale)
        _check_param_value(beta1, beta2, eps, weight_decay, self.cls_name)
        validator.check_value_type("use_locking", use_locking, [bool],
                                   self.cls_name)
        validator.check_value_type("use_nesterov", use_nesterov, [bool],
                                   self.cls_name)

        self.beta1 = Tensor(beta1, mstype.float32)
        self.beta2 = Tensor(beta2, mstype.float32)
        self.beta1_power = Parameter(initializer(1, [1], mstype.float32),
                                     name="beta1_power")
        self.beta2_power = Parameter(initializer(1, [1], mstype.float32),
                                     name="beta2_power")
        self.eps = eps

        self.moment1 = self.parameters.clone(prefix="moment1", init='zeros')
        self.moment2 = self.parameters.clone(prefix="moment2", init='zeros')

        self.hyper_map = C.HyperMap()
        self.opt = P.Adam(use_locking, use_nesterov)
        self.sparse_opt = P.SparseApplyAdam(use_locking, use_nesterov)
Exemplo n.º 3
0
    def __init__(self, params, learning_rate=1e-3, beta1=0.9, beta2=0.999, eps=1e-8, use_locking=False,
                 use_nesterov=False, weight_decay=0.0, loss_scale=1.0):
        super(Adam, self).__init__(learning_rate, params, weight_decay, loss_scale)
        _check_param_value(beta1, beta2, eps, weight_decay, self.cls_name)
        validator.check_value_type("use_locking", use_locking, [bool], self.cls_name)
        validator.check_value_type("use_nesterov", use_nesterov, [bool], self.cls_name)
        validator.check_value_type("loss_scale", loss_scale, [float], self.cls_name)
        validator.check_number_range("loss_scale", loss_scale, 1.0, float("inf"), Rel.INC_LEFT, self.cls_name)

        self.beta1 = Tensor(beta1, mstype.float32)
        self.beta2 = Tensor(beta2, mstype.float32)
        self.beta1_power = Parameter(initializer(1, [1], mstype.float32), name="beta1_power")
        self.beta2_power = Parameter(initializer(1, [1], mstype.float32), name="beta2_power")
        self.eps = eps

        self.moment1 = self.parameters.clone(prefix="moment1", init='zeros')
        self.moment2 = self.parameters.clone(prefix="moment2", init='zeros')

        self.hyper_map = C.HyperMap()
        self.opt = P.Adam(use_locking, use_nesterov)

        self.pow = P.Pow()
        self.sqrt = P.Sqrt()
        self.one = Tensor(np.array([1.0]).astype(np.float32))
        self.realdiv = P.RealDiv()
Exemplo n.º 4
0
    def __init__(self,
                 params,
                 learning_rate=1e-3,
                 beta1=0.9,
                 beta2=0.999,
                 eps=1e-8,
                 use_locking=False,
                 use_nesterov=False,
                 weight_decay=0.0,
                 loss_scale=1.0,
                 decay_filter=lambda x: 'beta' not in x.name and 'gamma' not in
                 x.name):
        super(Adam, self).__init__(learning_rate, params)
        _check_param_value(beta1, beta2, eps, weight_decay)
        validator.check_type("use_locking", use_locking, [bool])
        validator.check_type("use_nesterov", use_nesterov, [bool])
        validator.check_type("loss_scale", loss_scale, [float])
        validator.check_number_range("loss_scale", loss_scale, 1.0,
                                     float("inf"), Rel.INC_LEFT)

        self.dynamic_lr = False
        if isinstance(learning_rate, Iterable) or \
                (isinstance(learning_rate, Tensor) and learning_rate.dim() == 1):
            self.dynamic_lr = True
            self.gather = P.GatherV2()
            self.assignadd = P.AssignAdd()
            self.global_step = Parameter(initializer(0, [1], mstype.int32),
                                         name="global_step")
            self.axis = 0

        self.beta1 = Tensor(beta1, mstype.float32)
        self.beta2 = Tensor(beta2, mstype.float32)
        self.beta1_power = Parameter(initializer(1, [1], mstype.float32),
                                     name="beta1_power")
        self.beta2_power = Parameter(initializer(1, [1], mstype.float32),
                                     name="beta2_power")
        self.eps = eps

        self.moment1 = self.parameters.clone(prefix="moment1", init='zeros')
        self.moment2 = self.parameters.clone(prefix="moment2", init='zeros')

        self.decay_tf = tuple(decay_filter(x) for x in self.parameters)
        self.hyper_map = C.HyperMap()
        self.opt = P.Adam(use_locking, use_nesterov)
        self.weight_decay = weight_decay * loss_scale
        self.reciprocal_scale = 1.0 / loss_scale

        self.pow = P.Pow()
        self.sqrt = P.Sqrt()
        self.one = Tensor(np.array([1.0]).astype(np.float32))
        self.realdiv = P.RealDiv()
Exemplo n.º 5
0
 def __init__(self, var, m, v):
     super(AdamNet, self).__init__()
     self.apply_adam = P.Adam()
     self.var = Parameter(var, name="var")
     self.m = Parameter(m, name="m")
     self.v = Parameter(v, name="v")