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Adding initial SVE support to TVM - #8655
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Prototype containing initial VLA and predication implementation
MeeraN7
requested review from
ZihengJiang, areusch, comaniac, jcf94, jroesch, junrushao, kazum, kparzysz-quic, liangfu, masahi, merrymercy, tmoreau89, tqchen, vinx13, yzhliu and zhiics
as code ownersAugust 4, 2021 16:25
MeeraN7
commented
Aug 5, 2021
Author
mbaret
commented
Aug 5, 2021
Contributor
@tqchen@jcf94@junrushao1994 you may also be interested |
huajsj
reviewed
Aug 7, 2021
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| # ctx = remote.context(target) | ||
| # # launch the kernel. | ||
| # n = nn | ||
| # a = tvm.nd.array(np.random.uniform(size=(n + base, stride)).astype(A.dtype), ctx) | ||
| # c = tvm.nd.array(np.zeros((n, stride), dtype=C.dtype), ctx) | ||
| # f(a, c) | ||
| # tvm.testing.assert_allclose(c.asnumpy(), a.asnumpy()[base:] + 1) |
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| # ctx = remote.context(target) | ||
| # # launch the kernel. | ||
| # a = tvm.nd.empty((n,), A.dtype, ctx).copyfrom(np.random.uniform(size=(n, lanes))) | ||
| # c = tvm.nd.empty((n,), C.dtype, ctx) | ||
| # f(a, c) | ||
| # tvm.testing.assert_allclose(c.asnumpy(), a.asnumpy() + 1) |
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| # ctx = remote.context(target) | ||
| # # launch the kernel. | ||
| # n = nn | ||
| # a = tvm.nd.array(np.random.uniform(size=(n + base)).astype(A.dtype), ctx) | ||
| # c = tvm.nd.array(np.zeros(n, dtype=C.dtype), ctx) | ||
| # f(a, c) | ||
| # tvm.testing.assert_allclose(c.asnumpy(), a.asnumpy()[::-1][:n]) |
| } | ||
| // All pattern | ||
| int all_pattern = 31; |
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| // auto const str_to_parse = os.str(); | ||
| // auto pos = str_to_parse.find("x"); | ||
| // auto stem= str_to_parse.substr(0, pos); |
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| // DataType(int code, int bits) { | ||
| // data_.code = static_cast<uint8_t>(code); | ||
| // data_.bits = static_cast<uint8_t>(bits); | ||
| // is_scalable_ = true; | ||
| // std::cout<<bits<<std::endl; | ||
| // data_.lanes = uint16_t(128) / static_cast<uint16_t>(8); // minimal lanes | ||
| // | ||
| //// if (code == kBFloat) { | ||
| //// ICHECK_EQ(bits, 16); | ||
| //// } | ||
| // } |
| bool is_scalable() const { return is_scalable_; } | ||
| DataType with_scalable_lanes() const { | ||
| int min_num_lanes = 128 / bits(); |
Contributor
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macro? and does here only support vector size 128 or should be configurable between 128 - 2048?
| bool is_vector_bool() const { return is_vector() && bits() == 1; } | ||
| /*! \return whether type is a Void type. */ | ||
| bool is_void() const { return code() == DataType::kHandle && bits() == 0 && lanes() == 0; } | ||
| bool is_scalable() const { return is_scalable_; } |
| bool operator==(const DataType& other) const { | ||
| return data_.code == other.data_.code && data_.bits == other.data_.bits && | ||
| data_.lanes == other.data_.lanes; | ||
| data_.lanes == other.data_.lanes; // && is_scalable_ == other.is_scalable_; |
Contributor
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seem like no diff with original code, is the comment for "is_scalable_ == other.is_scalable" intend logic?
| bool is_void() const { return code() == DataType::kHandle && bits() == 0 && lanes() == 0; } | ||
| bool is_scalable() const { return is_scalable_; } | ||
| DataType with_scalable_lanes() const { |
Contributor
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how this function cooperate with is_scalable_? what happen if is_scalable_ is false but this function get called?
jroesch
commented
Jan 19, 2022
Member
This PR appears to be out of date, please feel free to reopen it if this is not the case. As part of the new year we are attempting to triage the project's open pull requests to ensure that code which Thanks again for your contribution, and feel free to reach out to discuss these changes. |
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Prototype for the addition of Arm Architecture's Scalable Vector Extension (SVE) in TVM containing initial VLA and predication implementation, based on earlier work by Giuseppe Rossini.
The RFC can be found here