Python torch.all方法代碼示例

# 需要導入模塊: import torch [as 別名]
# 或者: from torch import all [as 別名]
def get_gt_priorities(self, gt_bboxes):
        """Get gt priorities according to their areas.

        Smaller gt has higher priority.

        Args:
            gt_bboxes (Tensor): Ground truth boxes, shape (k, 4).

        Returns:
            Tensor: The priority of gts so that gts with larger priority is
              more likely to be assigned. Shape (k, )
        """
        gt_areas = bboxes_area(gt_bboxes)
        # Rank all gt bbox areas. Smaller objects has larger priority
        _, sort_idx = gt_areas.sort(descending=True)
        return sort_idx 

# 需要導入模塊: import torch [as 別名]
# 或者: from torch import all [as 別名]
def test_max_iou_assigner():
    self = MaxIoUAssigner(
        pos_iou_thr=0.5,
        neg_iou_thr=0.5,
    )
    bboxes = torch.FloatTensor([
        [0, 0, 10, 10],
        [10, 10, 20, 20],
        [5, 5, 15, 15],
        [32, 32, 38, 42],
    ])
    gt_bboxes = torch.FloatTensor([
        [0, 0, 10, 9],
        [0, 10, 10, 19],
    ])
    gt_labels = torch.LongTensor([2, 3])
    assign_result = self.assign(bboxes, gt_bboxes, gt_labels=gt_labels)
    assert len(assign_result.gt_inds) == 4
    assert len(assign_result.labels) == 4

    expected_gt_inds = torch.LongTensor([1, 0, 2, 0])
    assert torch.all(assign_result.gt_inds == expected_gt_inds) 

# 需要導入模塊: import torch [as 別名]
# 或者: from torch import all [as 別名]
def test_max_iou_assigner_with_ignore():
    self = MaxIoUAssigner(
        pos_iou_thr=0.5,
        neg_iou_thr=0.5,
        ignore_iof_thr=0.5,
        ignore_wrt_candidates=False,
    )
    bboxes = torch.FloatTensor([
        [0, 0, 10, 10],
        [10, 10, 20, 20],
        [5, 5, 15, 15],
        [30, 32, 40, 42],
    ])
    gt_bboxes = torch.FloatTensor([
        [0, 0, 10, 9],
        [0, 10, 10, 19],
    ])
    gt_bboxes_ignore = torch.Tensor([
        [30, 30, 40, 40],
    ])
    assign_result = self.assign(
        bboxes, gt_bboxes, gt_bboxes_ignore=gt_bboxes_ignore)

    expected_gt_inds = torch.LongTensor([1, 0, 2, -1])
    assert torch.all(assign_result.gt_inds == expected_gt_inds) 

# 需要導入模塊: import torch [as 別名]
# 或者: from torch import all [as 別名]
def test_max_iou_assigner_with_empty_gt():
    """Test corner case where an image might have no true detections."""
    self = MaxIoUAssigner(
        pos_iou_thr=0.5,
        neg_iou_thr=0.5,
    )
    bboxes = torch.FloatTensor([
        [0, 0, 10, 10],
        [10, 10, 20, 20],
        [5, 5, 15, 15],
        [32, 32, 38, 42],
    ])
    gt_bboxes = torch.FloatTensor([])
    assign_result = self.assign(bboxes, gt_bboxes)

    expected_gt_inds = torch.LongTensor([0, 0, 0, 0])
    assert torch.all(assign_result.gt_inds == expected_gt_inds) 

# 需要導入模塊: import torch [as 別名]
# 或者: from torch import all [as 別名]
def test_approx_iou_assigner():
    self = ApproxMaxIoUAssigner(
        pos_iou_thr=0.5,
        neg_iou_thr=0.5,
    )
    bboxes = torch.FloatTensor([
        [0, 0, 10, 10],
        [10, 10, 20, 20],
        [5, 5, 15, 15],
        [32, 32, 38, 42],
    ])
    gt_bboxes = torch.FloatTensor([
        [0, 0, 10, 9],
        [0, 10, 10, 19],
    ])
    approxs_per_octave = 1
    approxs = bboxes
    squares = bboxes
    assign_result = self.assign(approxs, squares, approxs_per_octave,
                                gt_bboxes)

    expected_gt_inds = torch.LongTensor([1, 0, 2, 0])
    assert torch.all(assign_result.gt_inds == expected_gt_inds) 

# 需要導入模塊: import torch [as 別名]
# 或者: from torch import all [as 別名]
def test_approx_iou_assigner_with_empty_gt():
    """Test corner case where an image might have no true detections."""
    self = ApproxMaxIoUAssigner(
        pos_iou_thr=0.5,
        neg_iou_thr=0.5,
    )
    bboxes = torch.FloatTensor([
        [0, 0, 10, 10],
        [10, 10, 20, 20],
        [5, 5, 15, 15],
        [32, 32, 38, 42],
    ])
    gt_bboxes = torch.FloatTensor([])
    approxs_per_octave = 1
    approxs = bboxes
    squares = bboxes
    assign_result = self.assign(approxs, squares, approxs_per_octave,
                                gt_bboxes)

    expected_gt_inds = torch.LongTensor([0, 0, 0, 0])
    assert torch.all(assign_result.gt_inds == expected_gt_inds) 

# 需要導入模塊: import torch [as 別名]
# 或者: from torch import all [as 別名]
def test_center_region_assigner():
    self = CenterRegionAssigner(pos_scale=0.3, neg_scale=1)
    bboxes = torch.FloatTensor([[0, 0, 10, 10], [10, 10, 20, 20], [8, 8, 9,
                                                                   9]])
    gt_bboxes = torch.FloatTensor([
        [0, 0, 11, 11],  # match bboxes[0]
        [10, 10, 20, 20],  # match bboxes[1]
        [4.5, 4.5, 5.5, 5.5],  # match bboxes[0] but area is too small
        [0, 0, 10, 10],  # match bboxes[1] and has a smaller area than gt[0]
    ])
    gt_labels = torch.LongTensor([2, 3, 4, 5])
    assign_result = self.assign(bboxes, gt_bboxes, gt_labels=gt_labels)
    assert len(assign_result.gt_inds) == 3
    assert len(assign_result.labels) == 3
    expected_gt_inds = torch.LongTensor([4, 2, 0])
    assert torch.all(assign_result.gt_inds == expected_gt_inds)
    shadowed_labels = assign_result.get_extra_property('shadowed_labels')
    # [8, 8, 9, 9] in the shadowed region of [0, 0, 11, 11] (label: 2)
    assert torch.any(shadowed_labels == torch.LongTensor([[2, 2]]))
    # [8, 8, 9, 9] in the shadowed region of [0, 0, 10, 10] (label: 5)
    assert torch.any(shadowed_labels == torch.LongTensor([[2, 5]]))
    # [0, 0, 10, 10] is already assigned to [4.5, 4.5, 5.5, 5.5].
    #   Therefore, [0, 0, 11, 11] (label: 2) is shadowed
    assert torch.any(shadowed_labels == torch.LongTensor([[0, 2]])) 

# 需要導入模塊: import torch [as 別名]
# 或者: from torch import all [as 別名]
def process(self):
        mat = loadmat(self.raw_paths[0])['Problem'][0][0][2].tocsr().tocoo()

        row = torch.from_numpy(mat.row).to(torch.long)
        col = torch.from_numpy(mat.col).to(torch.long)
        edge_index = torch.stack([row, col], dim=0)

        edge_attr = torch.from_numpy(mat.data).to(torch.float)
        if torch.all(edge_attr == 1.):
            edge_attr = None

        size = torch.Size(mat.shape)
        if mat.shape[0] == mat.shape[1]:
            size = None

        num_nodes = mat.shape[0]

        data = Data(edge_index=edge_index, edge_attr=edge_attr, size=size,
                    num_nodes=num_nodes)

        if self.pre_transform is not None:
            data = self.pre_transform(data)

        torch.save(self.collate([data]), self.processed_paths[0]) 

# 需要導入模塊: import torch [as 別名]
# 或者: from torch import all [as 別名]
def test_backward_for_binary_cmd_with_autograd(cmd, backward_one):
    """
    Test .backward() on local tensors wrapped in an AutogradTensor
    (It is useless but this is the most basic example)
    """
    a = torch.tensor([[3.0, 2], [-1, 2]], requires_grad=True)
    b = torch.tensor([[1.0, 2], [3, 2]], requires_grad=True)

    a = syft.AutogradTensor().on(a)
    b = syft.AutogradTensor().on(b)

    a_torch = torch.tensor([[3.0, 2], [-1, 2]], requires_grad=True)
    b_torch = torch.tensor([[1.0, 2], [3, 2]], requires_grad=True)

    c = getattr(a, cmd)(b)
    c_torch = getattr(a_torch, cmd)(b_torch)

    ones = torch.ones(c.shape)
    ones = syft.AutogradTensor().on(ones)
    c.backward(ones if backward_one else None)
    c_torch.backward(torch.ones(c_torch.shape))

    assert (a.child.grad == a_torch.grad).all()
    assert (b.child.grad == b_torch.grad).all() 

# 需要導入模塊: import torch [as 別名]
# 或者: from torch import all [as 別名]
def test_backward_for_binary_cmd_with_inputs_of_different_dim_and_autograd(cmd, shapes):
    """
    Test .backward() on local tensors wrapped in an AutogradTensor
    (It is useless but this is the most basic example)
    """
    a_shape, b_shape = shapes
    a = torch.ones(a_shape, requires_grad=True)
    b = torch.ones(b_shape, requires_grad=True)

    a = syft.AutogradTensor().on(a)
    b = syft.AutogradTensor().on(b)

    a_torch = torch.ones(a_shape, requires_grad=True)
    b_torch = torch.ones(b_shape, requires_grad=True)

    c = getattr(a, cmd)(b)
    c_torch = getattr(a_torch, cmd)(b_torch)

    ones = torch.ones(c.shape)
    ones = syft.AutogradTensor().on(ones)
    c.backward(ones)
    c_torch.backward(torch.ones(c_torch.shape))

    assert (a.child.grad == a_torch.grad).all()
    assert (b.child.grad == b_torch.grad).all() 

# 需要導入模塊: import torch [as 別名]
# 或者: from torch import all [as 別名]
def test_backward_for_remote_unary_cmd_local_autograd(workers, cmd):
    """
    Test .backward() on unary methods on remote tensors using
    implicit wrapping
    """
    alice = workers["alice"]

    a = torch.tensor([0.3, 0.2, 0], requires_grad=True)
    a = a.send(alice, local_autograd=True)

    a_torch = torch.tensor([0.3, 0.2, 0], requires_grad=True)

    c = getattr(a, cmd)()
    c_torch = getattr(a_torch, cmd)()

    ones = torch.ones(c.shape).send(alice)
    ones = syft.AutogradTensor().on(ones)
    c.backward(ones)
    c_torch.backward(torch.ones_like(c_torch))

    # Have to do .child.grad here because .grad doesn't work on Wrappers yet
    assert (a.grad.get() == a_torch.grad).all() 

# 需要導入模塊: import torch [as 別名]
# 或者: from torch import all [as 別名]
def test_backward_for_fix_prec_binary_cmd_with_autograd(cmd, backward_one):
    """
    Test .backward() on Fixed Precision Tensor for a single operation
    """
    a = torch.tensor([[3.0, 2], [-1, 2]], requires_grad=True).fix_prec()
    b = torch.tensor([[1.0, 2], [3, 2]], requires_grad=True).fix_prec()

    a = syft.AutogradTensor().on(a)
    b = syft.AutogradTensor().on(b)

    a_torch = torch.tensor([[3.0, 2], [-1, 2]], requires_grad=True)
    b_torch = torch.tensor([[1.0, 2], [3, 2]], requires_grad=True)

    c = getattr(a, cmd)(b)
    c_torch = getattr(a_torch, cmd)(b_torch)

    ones = torch.ones(c.shape).fix_prec()
    ones = syft.AutogradTensor().on(ones)
    c.backward(ones if backward_one else None)
    c_torch.backward(torch.ones(c_torch.shape))

    assert (a.grad.float_prec() == a_torch.grad).all()
    assert (b.grad.float_prec() == b_torch.grad).all() 

# 需要導入模塊: import torch [as 別名]
# 或者: from torch import all [as 別名]
def test_get_float_prec_on_autograd_tensor(workers):
    bob, alice, james = workers["bob"], workers["alice"], workers["james"]

    x = torch.tensor([0.1, 1.0])
    x2 = syft.AutogradTensor().on(x.fix_prec())
    assert (x2.float_precision() == x).all()

    x = torch.tensor([1, 2])
    x2 = x.share(bob, alice, crypto_provider=james)
    x2 = syft.AutogradTensor().on(x2)
    assert (x2.get() == x).all()

    x = torch.tensor([0.1, 1.0])
    x2 = x.fix_precision()
    x2 = x2.share(bob, alice, crypto_provider=james, requires_grad=True)
    assert (x2.get().float_precision() == x).all() 

# 需要導入模塊: import torch [as 別名]
# 或者: from torch import all [as 別名]
def test_inplace_send_get(workers):
    bob = workers["bob"]

    tensor = torch.tensor([1.0, -1.0, 3.0, 4.0])
    tensor_ptr = tensor.send_(bob)

    assert tensor_ptr.id == tensor.id
    assert id(tensor_ptr) == id(tensor)

    tensor_back = tensor_ptr.get_()

    assert tensor_back.id == tensor_ptr.id
    assert tensor_back.id == tensor.id
    assert id(tensor_back) == id(tensor)
    assert id(tensor_back) == id(tensor)

    assert (tensor_back == tensor).all() 

# 需要導入模塊: import torch [as 別名]
# 或者: from torch import all [as 別名]
def test_gradient_send_recv(workers):
    """Tests that gradients are properly sent and received along
    with their tensors."""

    bob = workers["bob"]

    # create a tensor
    x = torch.tensor([1, 2, 3, 4.0], requires_grad=True)

    # create gradient on tensor
    x.sum().backward(th.tensor(1.0))

    # save gradient
    orig_grad = x.grad

    # send and get back
    t = x.send(bob).get()

    # check that gradient was properly serde
    assert (t.grad == orig_grad).all()