Merge pull request !419 from candanzg/tensor_assign_bool_index

Merge pull request !261 from wenkai/histogram_dev3cp

Merge pull request !340 from ougongchang/master

ALLGATHER, and REDUCESCATTER with different factors; change the BETA and
GAMMA value in cost model.

1) A[B]=U
2) A[A>n]=U
    A.shape == B.shape
    U is a scalar or Tensor(size==1)
    B is Tensor(dtype=bool)
    n is a Number

Signed-off-by: candanzg <zhangshucheng@huawei.com>

Signed-off-by: candanzg <zhangshucheng@huawei.com>

Merge pull request !420 from amongo/FixMixedPrecisionForConstParam

clean clang format errors and cpplint errors

add some test cases for histogram summary operator

Merge pull request !435 from anthonyaje/fix_serdes_dataset

Merge pull request !400 from amongo/FixMathOps

Merge pull request !333 from jiangzhiwen/dataset/skip

Merge pull request !434 from h.farahat/multi_itr_bug

Add new test cases

format code

remove test case for fp64

add back scalar manipulation

remove save graph

fix pylint

Merge pull request !402 from yangzhenzhang/square

Merge pull request !383 from zhaozhenlong/cell/psnr

Merge pull request !286 from wangqiuliang/resolve-pynative-operator-issue

Merge pull request !183 from JunhanHu/cpp_sampler

Merge pull request !386 from changzherui/modify-ut

Merge pull request !343 from amongo/FixGradUsingInterfaceExtend

Merge pull request !217 from zhangbuxue/support_pow_operator

Merge pull request !379 from JichenZhao/groupnorm

add test case for grad concat

fix usage in test framework

fix testcase

format code

Merge pull request !304 from Xiaoda/modify-not-fully-use-devices-and-strategy-checking

Merge pull request !243 from h.farahat/nested_repeat

Merge pull request !294 from zhaozhenlong/cell/ssim

Merge pull request !312 from xiefangqi/xfq_apply_branch