Python utils.get_incremental_state方法代码示例

# 需要导入模块: from fairseq import utils [as 别名]
# 或者: from fairseq.utils import get_incremental_state [as 别名]
def _split_encoder_out(self, encoder_out, incremental_state):
        """Split and transpose encoder outputs.

        This is cached when doing incremental inference.
        """
        cached_result = utils.get_incremental_state(self, incremental_state, 'encoder_out')
        if cached_result is not None:
            return cached_result

        # transpose only once to speed up attention layers
        encoder_a, encoder_b = encoder_out
        encoder_a = encoder_a.transpose(1, 2).contiguous()
        result = (encoder_a, encoder_b)

        if incremental_state is not None:
            utils.set_incremental_state(self, incremental_state, 'encoder_out', result)
        return result 

# 需要导入模块: from fairseq import utils [as 别名]
# 或者: from fairseq.utils import get_incremental_state [as 别名]
def _split_encoder_out(self, encoder_out, incremental_state, aux=False):
        """Split and transpose encoder outputs.

        This is cached when doing incremental inference.
        """
        state_name='encoder_out'
        if aux == True:
            state_name = 'aux' + state_name

        cached_result = utils.get_incremental_state(self, incremental_state, state_name)

        if cached_result is not None:
            return cached_result

        # transpose only once to speed up attention layers
        encoder_a, encoder_b = encoder_out
        encoder_a = encoder_a.transpose(1, 2).contiguous()
        result = (encoder_a, encoder_b)

        if incremental_state is not None:
            utils.set_incremental_state(self, incremental_state, state_name, result)
        return result 

# 需要导入模块: from fairseq import utils [as 别名]
# 或者: from fairseq.utils import get_incremental_state [as 别名]
def reorder_incremental_state(self, incremental_state, new_order):
        """Reorder buffered internal state (for incremental generation)."""
        cached_state = utils.get_incremental_state(
            self, incremental_state, "cached_state"
        )
        if cached_state is None:
            return

        def reorder_state(state):
            if state is None:
                return None
            if isinstance(state, list):
                return [reorder_state(state_i) for state_i in state]
            return state.index_select(0, new_order)

        new_state = tuple(map(reorder_state, cached_state))
        utils.set_incremental_state(self, incremental_state, "cached_state", new_state) 

# 需要导入模块: from fairseq import utils [as 别名]
# 或者: from fairseq.utils import get_incremental_state [as 别名]
def reorder_incremental_state(self, incremental_state, new_order):
        # parent reorders attention model
        super().reorder_incremental_state(incremental_state, new_order)

        cached_state = utils.get_incremental_state(
            self, incremental_state, "cached_state"
        )
        if cached_state is None:
            return

        # Last 2 elements of prev_states are encoder projections
        # used for ONNX export
        for i, state in enumerate(cached_state[:-2]):
            cached_state[i] = state.index_select(1, new_order)

        utils.set_incremental_state(
            self, incremental_state, "cached_state", cached_state
        ) 

# 需要导入模块: from fairseq import utils [as 别名]
# 或者: from fairseq.utils import get_incremental_state [as 别名]
def forward(self, prev_output_tokens, encoder_out, incremental_state=None):
        if incremental_state is not None:
            prev_output_tokens = prev_output_tokens[:, -1:]
        bbsz = prev_output_tokens.size(0)
        vocab = len(self.dictionary)
        src_len = encoder_out.size(1)
        tgt_len = prev_output_tokens.size(1)

        # determine number of steps
        if incremental_state is not None:
            # cache step number
            step = utils.get_incremental_state(self, incremental_state, 'step')
            if step is None:
                step = 0
            utils.set_incremental_state(self, incremental_state, 'step', step + 1)
            steps = [step]
        else:
            steps = list(range(tgt_len))

        # define output in terms of raw probs
        if hasattr(self.args, 'probs'):
            assert self.args.probs.dim() == 3, \
                'expected probs to have size bsz*steps*vocab'
            probs = self.args.probs.index_select(1, torch.LongTensor(steps))
        else:
            probs = torch.FloatTensor(bbsz, len(steps), vocab).zero_()
            for i, step in enumerate(steps):
                # args.beam_probs gives the probability for every vocab element,
                # starting with eos, then unknown, and then the rest of the vocab
                if step < len(self.args.beam_probs):
                    probs[:, i, self.dictionary.eos():] = self.args.beam_probs[step]
                else:
                    probs[:, i, self.dictionary.eos()] = 1.0

        # random attention
        attn = torch.rand(bbsz, src_len, tgt_len)

        return Variable(probs), Variable(attn) 

# 需要导入模块: from fairseq import utils [as 别名]
# 或者: from fairseq.utils import get_incremental_state [as 别名]
def _get_input_buffer(self, incremental_state):
        return utils.get_incremental_state(self, incremental_state, 'input_buffer') 

# 需要导入模块: from fairseq import utils [as 别名]
# 或者: from fairseq.utils import get_incremental_state [as 别名]
def _get_input_buffer(self, incremental_state):
        return utils.get_incremental_state(
            self,
            incremental_state,
            'attn_state',
        ) or {} 

# 需要导入模块: from fairseq import utils [as 别名]
# 或者: from fairseq.utils import get_incremental_state [as 别名]
def reorder_incremental_state(self, incremental_state, new_order):
        super().reorder_incremental_state(incremental_state, new_order)
        encoder_out = utils.get_incremental_state(self, incremental_state, 'encoder_out')
        if encoder_out is not None:
            encoder_out = tuple(eo.index_select(0, new_order) for eo in encoder_out)
            utils.set_incremental_state(self, incremental_state, 'encoder_out', encoder_out) 

# 需要导入模块: from fairseq import utils [as 别名]
# 或者: from fairseq.utils import get_incremental_state [as 别名]
def reorder_incremental_state(self, incremental_state, new_order):
        super().reorder_incremental_state(incremental_state, new_order)
        cached_state = utils.get_incremental_state(self, incremental_state, 'cached_state')
        if cached_state is None:
            return

        def reorder_state(state):
            if isinstance(state, list):
                return [reorder_state(state_i) for state_i in state]
            return state.index_select(0, new_order)

        new_state = tuple(map(reorder_state, cached_state))
        utils.set_incremental_state(self, incremental_state, 'cached_state', new_state) 

# 需要导入模块: from fairseq import utils [as 别名]
# 或者: from fairseq.utils import get_incremental_state [as 别名]
def _get_monotonic_buffer(self, incremental_state):
        return utils.get_incremental_state(
            self,
            incremental_state,
            'monotonic',
        ) or {} 

# 需要导入模块: from fairseq import utils [as 别名]
# 或者: from fairseq.utils import get_incremental_state [as 别名]
def get_pointer(self, incremental_state):
        return utils.get_incremental_state(
            self,
            incremental_state,
            'monotonic',
        ) or {} 

# 需要导入模块: from fairseq import utils [as 别名]
# 或者: from fairseq.utils import get_incremental_state [as 别名]
def forward(self, prev_output_tokens, encoder_out=None, incremental_state=None):
        if incremental_state is not None:
            prev_output_tokens = prev_output_tokens[:, -1:]
        bbsz = prev_output_tokens.size(0)
        vocab = len(self.dictionary)
        src_len = encoder_out.encoder_out.size(1)
        tgt_len = prev_output_tokens.size(1)

        # determine number of steps
        if incremental_state is not None:
            # cache step number
            step = utils.get_incremental_state(self, incremental_state, 'step')
            if step is None:
                step = 0
            utils.set_incremental_state(self, incremental_state, 'step', step + 1)
            steps = [step]
        else:
            steps = list(range(tgt_len))

        # define output in terms of raw probs
        if hasattr(self.args, 'probs'):
            assert self.args.probs.dim() == 3, \
                'expected probs to have size bsz*steps*vocab'
            probs = self.args.probs.index_select(1, torch.LongTensor(steps))
        else:
            probs = torch.FloatTensor(bbsz, len(steps), vocab).zero_()
            for i, step in enumerate(steps):
                # args.beam_probs gives the probability for every vocab element,
                # starting with eos, then unknown, and then the rest of the vocab
                if step < len(self.args.beam_probs):
                    probs[:, i, self.dictionary.eos():] = self.args.beam_probs[step]
                else:
                    probs[:, i, self.dictionary.eos()] = 1.0

        # random attention
        attn = torch.rand(bbsz, tgt_len, src_len)

        dev = prev_output_tokens.device
        return probs.to(dev), {"attn": [attn.to(dev)]} 

# 需要导入模块: from fairseq import utils [as 别名]
# 或者: from fairseq.utils import get_incremental_state [as 别名]
def _get_input_buffer(self, incremental_state, incremental_clone_id: str = ""):
        return (
            utils.get_incremental_state(
                self, incremental_state, "attn_state" + incremental_clone_id
            )
            or {}
        ) 

# 需要导入模块: from fairseq import utils [as 别名]
# 或者: from fairseq.utils import get_incremental_state [as 别名]
def forward(self, prev_output_tokens, encoder_out, incremental_state=None):
        if incremental_state is not None:
            prev_output_tokens = prev_output_tokens[:, -1:]
        bbsz = prev_output_tokens.size(0)
        vocab = len(self.dictionary)
        src_len = encoder_out.size(1)
        tgt_len = prev_output_tokens.size(1)

        # determine number of steps
        if incremental_state is not None:
            # cache step number
            step = utils.get_incremental_state(self, incremental_state, 'step')
            if step is None:
                step = 0
            utils.set_incremental_state(self, incremental_state, 'step', step + 1)
            steps = [step]
        else:
            steps = list(range(tgt_len))

        # define output in terms of raw probs
        if hasattr(self.args, 'probs'):
            assert self.args.probs.dim() == 3, \
                'expected probs to have size bsz*steps*vocab'
            probs = self.args.probs.index_select(1, torch.LongTensor(steps))
        else:
            probs = torch.FloatTensor(bbsz, len(steps), vocab).zero_()
            for i, step in enumerate(steps):
                # args.beam_probs gives the probability for every vocab element,
                # starting with eos, then unknown, and then the rest of the vocab
                if step < len(self.args.beam_probs):
                    probs[:, i, self.dictionary.eos():] = self.args.beam_probs[step]
                else:
                    probs[:, i, self.dictionary.eos()] = 1.0

        # random attention
        attn = torch.rand(bbsz, tgt_len, src_len)

        return probs, attn