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Merge pull request #1529 from lucbv/rotg2
Rotg: implementation of BLAS level1 rotg
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54 changes: 54 additions & 0 deletions
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blas/eti/generated_specializations_cpp/rotg/KokkosBlas1_rotg_eti_spec_inst.cpp.in
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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| /* | ||
| //@HEADER | ||
| // ************************************************************************ | ||
| // | ||
| // Kokkos v. 3.0 | ||
| // Copyright (2020) National Technology & Engineering | ||
| // Solutions of Sandia, LLC (NTESS). | ||
| // | ||
| // Under the terms of Contract DE-NA0003525 with NTESS, | ||
| // the U.S. Government retains certain rights in this software. | ||
| // | ||
| // Redistribution and use in source and binary forms, with or without | ||
| // modification, are permitted provided that the following conditions are | ||
| // met: | ||
| // | ||
| // 1. Redistributions of source code must retain the above copyright | ||
| // notice, this list of conditions and the following disclaimer. | ||
| // | ||
| // 2. Redistributions in binary form must reproduce the above copyright | ||
| // notice, this list of conditions and the following disclaimer in the | ||
| // documentation and/or other materials provided with the distribution. | ||
| // | ||
| // 3. Neither the name of the Corporation nor the names of the | ||
| // contributors may be used to endorse or promote products derived from | ||
| // this software without specific prior written permission. | ||
| // | ||
| // THIS SOFTWARE IS PROVIDED BY NTESS "AS IS" AND ANY | ||
| // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
| // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NTESS OR THE | ||
| // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
| // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
| // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
| // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
| // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
| // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
| // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| // | ||
| // Questions? Contact Siva Rajamanickam (srajama@sandia.gov) | ||
| // | ||
| // ************************************************************************ | ||
| //@HEADER | ||
| */ | ||
|
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| #define KOKKOSKERNELS_IMPL_COMPILE_LIBRARY true | ||
| #include "KokkosKernels_config.h" | ||
| #include "KokkosBlas1_rotg_spec.hpp" | ||
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| namespace KokkosBlas { | ||
| namespace Impl { | ||
| @BLAS1_ROTG_ETI_INST_BLOCK@ | ||
| } //IMPL | ||
| } //Kokkos |
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blas/eti/generated_specializations_hpp/KokkosBlas1_rotg_eti_spec_avail.hpp.in
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| //@HEADER | ||
| // ************************************************************************ | ||
| // | ||
| // KokkosKernels 0.9: Linear Algebra and Graph Kernels | ||
| // Copyright 2017 Sandia Corporation | ||
| // | ||
| // Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation, | ||
| // the U.S. Government retains certain rights in this software. | ||
| // | ||
| // Redistribution and use in source and binary forms, with or without | ||
| // modification, are permitted provided that the following conditions are | ||
| // met: | ||
| // | ||
| // 1. Redistributions of source code must retain the above copyright | ||
| // notice, this list of conditions and the following disclaimer. | ||
| // | ||
| // 2. Redistributions in binary form must reproduce the above copyright | ||
| // notice, this list of conditions and the following disclaimer in the | ||
| // documentation and/or other materials provided with the distribution. | ||
| // | ||
| // 3. Neither the name of the Corporation nor the names of the | ||
| // contributors may be used to endorse or promote products derived from | ||
| // this software without specific prior written permission. | ||
| // | ||
| // THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY | ||
| // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
| // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE | ||
| // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
| // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
| // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
| // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
| // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
| // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
| // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| // | ||
| // Questions? Contact Siva Rajamanickam (srajama@sandia.gov) | ||
| // | ||
| // ************************************************************************ | ||
| //@HEADER | ||
| */ | ||
| #ifndef KOKKOSBLAS1_ROTG_ETI_SPEC_AVAIL_HPP_ | ||
| #define KOKKOSBLAS1_ROTG_ETI_SPEC_AVAIL_HPP_ | ||
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| namespace KokkosBlas { | ||
| namespace Impl { | ||
| @BLAS1_ROTG_ETI_AVAIL_BLOCK@ | ||
| } //IMPL | ||
| } //Kokkos | ||
| #endif |
51 changes: 51 additions & 0 deletions
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blas/eti/generated_specializations_hpp/KokkosBlas1_rotg_eti_spec_decl.hpp.in
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| /* | ||
| //@HEADER | ||
| // ************************************************************************ | ||
| // | ||
| // KokkosKernels 0.9: Linear Algebra and Graph Kernels | ||
| // Copyright 2017 Sandia Corporation | ||
| // | ||
| // Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation, | ||
| // the U.S. Government retains certain rights in this software. | ||
| // | ||
| // Redistribution and use in source and binary forms, with or without | ||
| // modification, are permitted provided that the following conditions are | ||
| // met: | ||
| // | ||
| // 1. Redistributions of source code must retain the above copyright | ||
| // notice, this list of conditions and the following disclaimer. | ||
| // | ||
| // 2. Redistributions in binary form must reproduce the above copyright | ||
| // notice, this list of conditions and the following disclaimer in the | ||
| // documentation and/or other materials provided with the distribution. | ||
| // | ||
| // 3. Neither the name of the Corporation nor the names of the | ||
| // contributors may be used to endorse or promote products derived from | ||
| // this software without specific prior written permission. | ||
| // | ||
| // THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY | ||
| // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
| // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE | ||
| // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
| // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
| // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
| // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
| // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
| // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
| // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| // | ||
| // Questions? Contact Siva Rajamanickam (srajama@sandia.gov) | ||
| // | ||
| // ************************************************************************ | ||
| //@HEADER | ||
| */ | ||
| #ifndef KOKKOSBLAS1_ROTG_ETI_SPEC_DECL_HPP_ | ||
| #define KOKKOSBLAS1_ROTG_ETI_SPEC_DECL_HPP_ | ||
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| namespace KokkosBlas { | ||
| namespace Impl { | ||
| @BLAS1_ROTG_ETI_DECL_BLOCK@ | ||
| } //IMPL | ||
| } //Kokkos | ||
| #endif |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,122 @@ | ||
| /* | ||
| //@HEADER | ||
| // ************************************************************************ | ||
| // | ||
| // Kokkos v. 3.0 | ||
| // Copyright (2020) National Technology & Engineering | ||
| // Solutions of Sandia, LLC (NTESS). | ||
| // | ||
| // Under the terms of Contract DE-NA0003525 with NTESS, | ||
| // the U.S. Government retains certain rights in this software. | ||
| // | ||
| // Redistribution and use in source and binary forms, with or without | ||
| // modification, are permitted provided that the following conditions are | ||
| // met: | ||
| // | ||
| // 1. Redistributions of source code must retain the above copyright | ||
| // notice, this list of conditions and the following disclaimer. | ||
| // | ||
| // 2. Redistributions in binary form must reproduce the above copyright | ||
| // notice, this list of conditions and the following disclaimer in the | ||
| // documentation and/or other materials provided with the distribution. | ||
| // | ||
| // 3. Neither the name of the Corporation nor the names of the | ||
| // contributors may be used to endorse or promote products derived from | ||
| // this software without specific prior written permission. | ||
| // | ||
| // THIS SOFTWARE IS PROVIDED BY NTESS "AS IS" AND ANY | ||
| // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
| // PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL NTESS OR THE | ||
| // CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
| // EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | ||
| // PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | ||
| // PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF | ||
| // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | ||
| // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
| // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| // | ||
| // Questions? Contact Siva Rajamanickam (srajama@sandia.gov) | ||
| // | ||
| // ************************************************************************ | ||
| //@HEADER | ||
| */ | ||
| #ifndef KOKKOSBLAS1_ROTG_IMPL_HPP_ | ||
| #define KOKKOSBLAS1_ROTG_IMPL_HPP_ | ||
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| #include <KokkosKernels_config.h> | ||
| #include <Kokkos_Core.hpp> | ||
| #include <KokkosBlas1_rotg_spec.hpp> | ||
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| namespace KokkosBlas { | ||
| namespace Impl { | ||
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| /// \brief Compute Givens rotation coefficients. | ||
| template <class Scalar, | ||
| typename std::enable_if<!Kokkos::ArithTraits<Scalar>::is_complex, | ||
| bool>::type = true> | ||
| void Rotg_Invoke(Scalar& a, Scalar& b, Scalar& c, Scalar& s) { | ||
| const Scalar one = Kokkos::ArithTraits<Scalar>::one(); | ||
| const Scalar zero = Kokkos::ArithTraits<Scalar>::zero(); | ||
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| const Scalar numerical_scaling = Kokkos::abs(a) + Kokkos::abs(b); | ||
| if (numerical_scaling == zero) { | ||
| c = one; | ||
| s = zero; | ||
| a = zero; | ||
| b = zero; | ||
| } else { | ||
| const Scalar scaled_a = a / numerical_scaling; | ||
| const Scalar scaled_b = b / numerical_scaling; | ||
| Scalar norm = Kokkos::sqrt(scaled_a * scaled_a + scaled_b * scaled_b) * | ||
| numerical_scaling; | ||
| Scalar sign = Kokkos::abs(a) > Kokkos::abs(b) ? a : b; | ||
| norm = Kokkos::copysign(norm, sign); | ||
| c = a / norm; | ||
| s = b / norm; | ||
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| Scalar z = one; | ||
| if (Kokkos::abs(a) > Kokkos::abs(b)) { | ||
| z = s; | ||
| } | ||
| if ((Kokkos::abs(b) >= Kokkos::abs(a)) && (c != zero)) { | ||
| z = one / c; | ||
| } | ||
| a = norm; | ||
| b = z; | ||
| } | ||
| } | ||
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| template <class Scalar, | ||
| typename std::enable_if<Kokkos::ArithTraits<Scalar>::is_complex, | ||
| bool>::type = true> | ||
| void Rotg_Invoke(Scalar& a, Scalar& b, | ||
| typename Kokkos::ArithTraits<Scalar>::mag_type& c, Scalar& s) { | ||
| using mag_type = typename Kokkos::ArithTraits<Scalar>::mag_type; | ||
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| const Scalar one = Kokkos::ArithTraits<Scalar>::one(); | ||
| const Scalar zero = Kokkos::ArithTraits<Scalar>::zero(); | ||
| const mag_type mag_zero = Kokkos::ArithTraits<mag_type>::zero(); | ||
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| const mag_type numerical_scaling = Kokkos::abs(a) + Kokkos::abs(b); | ||
| if (Kokkos::abs(a) == zero) { | ||
| c = mag_zero; | ||
| s = one; | ||
| a = b; | ||
| } else { | ||
| const Scalar scaled_a = Kokkos::abs(a / numerical_scaling); | ||
| const Scalar scaled_b = Kokkos::abs(b / numerical_scaling); | ||
| mag_type norm = | ||
| Kokkos::abs(Kokkos::sqrt(scaled_a * scaled_a + scaled_b * scaled_b)) * | ||
| numerical_scaling; | ||
| Scalar unit_a = a / Kokkos::abs(a); | ||
| c = Kokkos::abs(a) / norm; | ||
| s = unit_a * Kokkos::conj(b) / norm; | ||
| a = unit_a * norm; | ||
| } | ||
| } | ||
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| } // namespace Impl | ||
| } // namespace KokkosBlas | ||
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| #endif // KOKKOSBLAS1_ROTG_IMPL_HPP_ |
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