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libxsmm.f
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libxsmm.f
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!=======================================================================!
! Copyright (c) Intel Corporation - All rights reserved. !
! This file is part of the LIBXSMM library. !
! !
! For information on the license, see the LICENSE file. !
! Further information: https://github.com/libxsmm/libxsmm/ !
! SPDX-License-Identifier: BSD-3-Clause !
!=======================================================================!
! Hans Pabst (Intel Corp.)
!=======================================================================!
MODULE LIBXSMM
USE, INTRINSIC :: ISO_C_BINDING, ONLY: &
& C_DOUBLE, C_FLOAT, C_DOUBLE_COMPLEX, C_FLOAT_COMPLEX, &
& C_LONG_LONG, C_INT, C_SHORT, C_CHAR, C_INT8_T, C_BOOL, &
& C_F_POINTER, C_ASSOCIATED, C_LOC, C_PTR, &
& C_FUNPTR, C_NULL_FUNPTR, C_NULL_PTR
IMPLICIT NONE
!> Name of the version (stringized set of version numbers).
CHARACTER(*), PARAMETER :: LIBXSMM_VERSION = "$VERSION"
!> Name of the branch of which the version is derived from.
CHARACTER(*), PARAMETER :: LIBXSMM_BRANCH = "$BRANCH"
!> Major version based on the last reachable tag under RCS.
INTEGER(C_INT), PARAMETER :: LIBXSMM_VERSION_MAJOR = $MAJOR
!> Minor version based on the last reachable tag of the RCS.
INTEGER(C_INT), PARAMETER :: LIBXSMM_VERSION_MINOR = $MINOR
!> Update number based on the last reachable tag under RCS.
INTEGER(C_INT), PARAMETER :: LIBXSMM_VERSION_UPDATE = $UPDATE
!> Patch number counting commits since the last version stamp.
INTEGER(C_INT), PARAMETER :: LIBXSMM_VERSION_PATCH = $PATCH
!> Parameters the library and static kernels were built for.
INTEGER(C_INT), PARAMETER :: LIBXSMM_CACHELINE = $CACHELINE
INTEGER(C_INT), PARAMETER :: LIBXSMM_ALIGNMENT = $CACHELINE
INTEGER(C_INT), PARAMETER :: LIBXSMM_PREFETCH = $PREFETCH
INTEGER(C_INT), PARAMETER :: LIBXSMM_MAX_MNK = $MAX_MNK
INTEGER(C_INT), PARAMETER :: LIBXSMM_MAX_DIM = $MAX_DIM
INTEGER(C_INT), PARAMETER :: LIBXSMM_FLAGS = $FLAGS
INTEGER(C_INT), PARAMETER :: LIBXSMM_ILP64 = $ILP64
!> Parameters supplied for backward compatibility (deprecated).
INTEGER(C_INT), PARAMETER :: LIBXSMM_COL_MAJOR = 1
INTEGER(C_INT), PARAMETER :: LIBXSMM_ROW_MAJOR = 0
!> LIBXSMM_BLASINT_KIND (LP64: 32-bit, ILP64: 64-bit).
INTEGER(C_INT), PARAMETER :: LIBXSMM_BLASINT_KIND = $BLASINT_KIND
!> Integer kind used by timer interface.
INTEGER(C_INT), PARAMETER :: LIBXSMM_TICKINT_KIND = C_LONG_LONG
!> Parameters for simplified GEMM interface.
REAL(C_DOUBLE), PARAMETER :: LIBXSMM_ALPHA = REAL($ALPHA, C_DOUBLE)
REAL(C_DOUBLE), PARAMETER :: LIBXSMM_BETA = REAL($BETA, C_DOUBLE)
!> Flag enumeration which can be IORed.
INTEGER(C_INT), PARAMETER :: &
& LIBXSMM_GEMM_FLAG_NONE = 0, &
& LIBXSMM_GEMM_FLAG_TRANS_A = 1, &
& LIBXSMM_GEMM_FLAG_TRANS_B = 2, &
& LIBXSMM_GEMM_FLAG_TRANS_AB = IOR( &
& LIBXSMM_GEMM_FLAG_TRANS_A, LIBXSMM_GEMM_FLAG_TRANS_B), &
& LIBXSMM_GEMM_FLAG_BETA_0 = 4, &
& LIBXSMM_GEMM_FLAG_ALIGN_A = 8, &
& LIBXSMM_GEMM_FLAG_ALIGN_C =16, &
& LIBXSMM_GEMM_FLAG_ALIGN_C_NTS_HINT = IOR(1024, &
& LIBXSMM_GEMM_FLAG_ALIGN_C), &
& LIBXSMM_GEMM_FLAG_ALIGN_C_NTS_HINT_BETA_0 = IOR( &
& LIBXSMM_GEMM_FLAG_ALIGN_C_NTS_HINT, &
& LIBXSMM_GEMM_FLAG_BETA_0), &
& LIBXSMM_GEMM_FLAG_INVALID = 131072
!> Enumerates element/data types.
INTEGER(C_INT), PARAMETER :: &
& LIBXSMM_DATATYPE_F64 = 0, &
& LIBXSMM_DATATYPE_F32 = 1, &
& LIBXSMM_DATATYPE_BF16 = 2, &
& LIBXSMM_DATATYPE_F16 = 3, &
& LIBXSMM_DATATYPE_BF8 = 4, &
& LIBXSMM_DATATYPE_HF8 = 5, &
& LIBXSMM_DATATYPE_I64 = 6, &
& LIBXSMM_DATATYPE_I32 = 7, &
& LIBXSMM_DATATYPE_I16 = 8, &
& LIBXSMM_DATATYPE_I8 = 9, &
& LIBXSMM_DATATYPE_UNSIGNED = 10, &
& LIBXSMM_DATATYPE_UNSUPPORTED = 11
!> Enumeration of prefetch strategies which can be IORed.
INTEGER(C_INT), PARAMETER :: &
! Automatically select strategy (frontend).
& LIBXSMM_PREFETCH_AUTO = -1, &
! No prefetching and no prefetch function signature.
& LIBXSMM_PREFETCH_NONE = 0, &
! Prefetch PA using accesses to A.
& LIBXSMM_GEMM_PREFETCH_AL2 = 1, &
! Prefetch PB using accesses to C.
& LIBXSMM_GEMM_PREFETCH_BL2_VIA_C = 2, &
! Prefetch A ahead.
& LIBXSMM_GEMM_PREFETCH_AL2_AHEAD = 4, &
! Composed prefetch strategies.
& LIBXSMM_GEMM_PREFETCH_AL2BL2_VIA_C = IOR( &
& LIBXSMM_GEMM_PREFETCH_BL2_VIA_C, &
& LIBXSMM_GEMM_PREFETCH_AL2), &
& LIBXSMM_GEMM_PREFETCH_AL2BL2_VIA_C_AHEAD = IOR( &
& LIBXSMM_GEMM_PREFETCH_BL2_VIA_C, &
& LIBXSMM_GEMM_PREFETCH_AL2_AHEAD), &
! Current B into L1.
& LIBXSMM_GEMM_PREFETCH_BL1 = 8, &
& LIBXSMM_GEMM_PREFETCH_C = 64
!> Enumerates the available target architectures and instruction
!> set extensions as returned by libxsmm_get_target_archid().
INTEGER(C_INT), PARAMETER :: &
& LIBXSMM_TARGET_ARCH_UNKNOWN = 0, &
& LIBXSMM_TARGET_ARCH_GENERIC = 1, &
& LIBXSMM_X86_GENERIC = 1002, &
& LIBXSMM_X86_SSE3 = 1003, &
& LIBXSMM_X86_SSE4 = 1004, &
& LIBXSMM_X86_AVX = 1005, &
& LIBXSMM_X86_AVX2 = 1006, &
& LIBXSMM_X86_AVX2_ADL = 1007, &
& LIBXSMM_X86_AVX2_SRF = 1008, &
& LIBXSMM_X86_AVX512_VL128_SKX = 1041, &
& LIBXSMM_X86_AVX512_VL256_SKX = 1051, &
& LIBXSMM_X86_AVX512_VL256_CLX = 1052, &
& LIBXSMM_X86_AVX512_VL256_CPX = 1053, &
& LIBXSMM_X86_AVX512_SKX = 1101, &
& LIBXSMM_X86_AVX512_CLX = 1102, &
& LIBXSMM_X86_AVX512_CPX = 1103, &
& LIBXSMM_X86_AVX512_SPR = 1104, &
& LIBXSMM_X86_AVX512_GNR = 1105, &
& LIBXSMM_X86_ALLFEAT = 1999, &
& LIBXSMM_AARCH64_V81 = 2001, &
& LIBXSMM_AARCH64_V82 = 2002, &
& LIBXSMM_AARCH64_APPL_M1 = 2101, &
& LIBXSMM_AARCH64_SVE128 = 2201, &
& LIBXSMM_AARCH64_SVE256 = 2301, &
& LIBXSMM_AARCH64_NEOV1 = 2302, &
& LIBXSMM_AARCH64_SVX512 = 2401, &
& LIBXSMM_AARCH64_A64FX = 2402, &
& LIBXSMM_AARCH64_ALLFEAT = 2999
!> Generic function type (double-precision).
TYPE, BIND(C) :: LIBXSMM_DMMFUNCTION
TYPE(C_FUNPTR) :: handle = C_NULL_FUNPTR
END TYPE
!> Generic function type (single-precision).
TYPE, BIND(C) :: LIBXSMM_SMMFUNCTION
TYPE(C_FUNPTR) :: handle = C_NULL_FUNPTR
END TYPE
!> Generic function type (low-precision)
TYPE, BIND(C) :: LIBXSMM_WIMMFUNCTION
TYPE(C_FUNPTR) :: handle = C_NULL_FUNPTR
END TYPE
!> Generic function types with certain arity.
ABSTRACT INTERFACE
PURE SUBROUTINE LIBXSMM_FUNCTION3(a, b, c) BIND(C)
IMPORT :: C_PTR
TYPE(C_PTR), INTENT(IN), VALUE :: a, b, c
END SUBROUTINE
PURE SUBROUTINE LIBXSMM_FUNCTION6(a, b, c, pa, pb, pc) BIND(C)
IMPORT :: C_PTR
TYPE(C_PTR), INTENT(IN), VALUE :: a, b, c
TYPE(C_PTR), INTENT(IN), VALUE :: pa, pb, pc
END SUBROUTINE
END INTERFACE
!> Structure of differences with matrix norms according
!> to http://www.netlib.org/lapack/lug/node75.html).
TYPE, BIND(C) :: LIBXSMM_MATDIFF_INFO
REAL(C_DOUBLE) norm1_abs, norm1_rel !! One-norm
REAL(C_DOUBLE) normi_abs, normi_rel !! Infinity-norm
REAL(C_DOUBLE) normf_rel !! Froebenius-norm
!> Maximum difference, L2-norm (absolute and relative),
!> and R-squared.
REAL(C_DOUBLE) linf_abs, linf_rel, l2_abs, l2_rel, rsq
!> Statistics (reference): sum/l1, minimum, maximum,
!> arithmetic average, and variance.
REAL(C_DOUBLE) l1_ref, min_ref, max_ref, avg_ref, var_ref
!> Statistics (test): sum/l1, minimum, maximum,
!> arithmetic average, and variance.
REAL(C_DOUBLE) l1_tst, min_tst, max_tst, avg_tst, var_tst
!> Values(v_ref, v_tst) and location(m, n)
!> of largest linf_abs.
REAL(C_DOUBLE) v_ref, v_tst
!> If r is non-zero (i is not negative), values (v_ref,
!> v_tst), and location (m, n) stem from the i-th
!> reduction (r calls of libxsmm_matdiff_reduce)
!> of the largest difference (libxsmm_matdiff_epsilon).
INTEGER(LIBXSMM_BLASINT_KIND) m, n, i, r
END TYPE
INTERFACE
!> Initialize the library.
SUBROUTINE libxsmm_init() BIND(C)
END SUBROUTINE
!> De-initialize the library.
SUBROUTINE libxsmm_finalize() BIND(C)
END SUBROUTINE
!> Returns the architecture and instruction set extension
!> as determined by the CPUID flags, as set by the
!> libxsmm_get_target_arch* functions, or as set by
!> the LIBXSMM_TARGET environment variable.
PURE FUNCTION libxsmm_get_target_archid() BIND(C)
IMPORT :: C_INT
INTEGER(C_INT) :: libxsmm_get_target_archid
END FUNCTION
!> Set target architecture (archid: see PARAMETER
!> enumeration) for subsequent code generation (JIT).
SUBROUTINE libxsmm_set_target_archid(archid) BIND(C)
IMPORT :: C_INT
INTEGER(C_INT), INTENT(IN), VALUE :: archid
END SUBROUTINE
!> Set target architecture for subsequent code
!> generation (JIT); arch argument can be
!> "sse", "snb", "hsw", "skx",
!> "clx", "cpx", "spr", or "0" to rely on
!> the CPUID (default).
!> There are some alternative target names as well:
!> "sse", "avx", "avx2", "avx3" (incomplete list).
SUBROUTINE libxsmm_set_target_arch(arch) BIND(C)
IMPORT :: C_CHAR
CHARACTER(C_CHAR), INTENT(IN) :: arch(*)
END SUBROUTINE
!> Get the level of verbosity.
PURE FUNCTION libxsmm_get_verbosity() BIND(C)
IMPORT :: C_INT
INTEGER(C_INT) :: libxsmm_get_verbosity
END FUNCTION
!> Set the level of verbosity (0: off, positive value:
!> verbosity level, negative value: maximum verbosity,
!> which also dumps JIT-code).
SUBROUTINE libxsmm_set_verbosity(level) BIND(C)
IMPORT :: C_INT
INTEGER(C_INT), INTENT(IN), VALUE :: level
END SUBROUTINE
!> Impure function which returns the current clock tick
!> of a monotonic timer source; uses a platform-specific
!> resolution.
!> Implicit FORTRAN 77 interface: not available.
INTEGER(LIBXSMM_TICKINT_KIND) &
& FUNCTION libxsmm_timer_tick() BIND(C)
IMPORT :: LIBXSMM_TICKINT_KIND
END FUNCTION
!> Impure function (timer freq. may vary) which returns
!> the duration (in seconds) between two values received
!> by libxsmm_timer_tick.
!> Implicit FORTRAN 77 interface: not available.
FUNCTION libxsmm_timer_duration(tick0, tick1) BIND(C)
IMPORT :: LIBXSMM_TICKINT_KIND, C_DOUBLE
INTEGER(LIBXSMM_TICKINT_KIND), INTENT(IN), VALUE :: tick0
INTEGER(LIBXSMM_TICKINT_KIND), INTENT(IN), VALUE :: tick1
REAL(C_DOUBLE) :: libxsmm_timer_duration
END FUNCTION
!> Deallocates the JIT'ted code, or unregisters
!> and releases code from the registry.
!> Implicit FORTRAN 77 interface:
!> INTEGER(8) :: kernel
SUBROUTINE libxsmm_release_kernel(kernel) &
& BIND(C, NAME="libxsmm_release_kernel_")
IMPORT :: C_FUNPTR
TYPE(C_FUNPTR), INTENT(IN) :: kernel
END SUBROUTINE
!> Type-generic (unsafe) code dispatch.
!> Implicit FORTRAN 77 interface:
!> INTEGER(4) :: gemm_precision, flags, prefetch
!> INTEGER(4|8) :: m, n, k, lda, ldb, ldc
!> REAL(4|8) :: alpha, beta
!> INTEGER(8) :: kernel
SUBROUTINE libxsmm_xmmdispatch(kernel, gemm_precision, &
& m, n, k, lda, ldb, ldc, alpha, beta, flags, prefetch) &
& BIND(C, NAME="libxsmm_xmmdispatch_")
IMPORT :: C_FUNPTR, C_PTR, C_INT, LIBXSMM_BLASINT_KIND
TYPE(C_FUNPTR), INTENT(OUT) :: kernel
INTEGER(C_INT), INTENT(IN) :: gemm_precision
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: m, n, k
TYPE(C_PTR), INTENT(IN), VALUE :: lda, ldb, ldc
TYPE(C_PTR), INTENT(IN), VALUE :: alpha, beta
TYPE(C_PTR), INTENT(IN), VALUE :: flags, prefetch
END SUBROUTINE
!> Type-generic (unsafe) code dispatch.
!> Implicit FORTRAN 77 interface:
!> INTEGER(4) :: iprec, oprec, flags, prefetch
!> INTEGER(4|8) :: m, n, k, lda, ldb, ldc
!> REAL(4|8) :: alpha, beta
!> INTEGER(8) :: kernel
SUBROUTINE libxsmm_xmmdispatch2(kernel, iprec, oprec, &
& m, n, k, lda, ldb, ldc, alpha, beta, flags, prefetch) &
& BIND(C, NAME="libxsmm_xmmdispatch2_")
IMPORT :: C_FUNPTR, C_PTR, C_INT, LIBXSMM_BLASINT_KIND
TYPE(C_FUNPTR), INTENT(OUT) :: kernel
INTEGER(C_INT), INTENT(IN) :: iprec, oprec
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: m, n, k
TYPE(C_PTR), INTENT(IN), VALUE :: lda, ldb, ldc
TYPE(C_PTR), INTENT(IN), VALUE :: alpha, beta
TYPE(C_PTR), INTENT(IN), VALUE :: flags, prefetch
END SUBROUTINE
!> Generic call routine (3-argument form).
!> Implicit FORTRAN 77 interface:
!> REAL(4|8) :: a, b, c
!> INTEGER(8) :: kernel
PURE SUBROUTINE libxsmm_xmmcall_abc(kernel, a, b, c) &
& BIND(C, NAME="libxsmm_xmmcall_abc_")
IMPORT :: C_FUNPTR, C_PTR
TYPE(C_FUNPTR), INTENT(IN) :: kernel
TYPE(C_PTR), INTENT(IN), VALUE :: a, b, c
END SUBROUTINE
!> Generic call routine (6-argument form).
!> Implicit FORTRAN 77 interface:
!> REAL(4|8) :: a, b, c, pa, pb, pc
!> INTEGER(8) :: kernel
PURE SUBROUTINE libxsmm_xmmcall_prf(kernel, &
& a, b, c, pa, pb, pc) &
& BIND(C, NAME="libxsmm_xmmcall_prf_")
IMPORT :: C_FUNPTR, C_PTR
TYPE(C_FUNPTR), INTENT(IN) :: kernel
TYPE(C_PTR), INTENT(IN), VALUE :: a, b, c, pa, pb, pc
END SUBROUTINE
!> Fill destination with zeros; dst is a raw/binary buffer.
SUBROUTINE libxsmm_xclear(dst, nbytes) &
& BIND(C, NAME="libxsmm_xclear_")
IMPORT :: C_PTR, C_INT
TYPE(C_PTR), INTENT(IN), VALUE :: dst
INTEGER(C_INT), INTENT(IN) :: nbytes
END SUBROUTINE
!> Remove key-value from code registry and release memory.
SUBROUTINE libxsmm_xrelease(key, keysize) &
& BIND(C, NAME="libxsmm_xrelease_")
IMPORT :: C_PTR, C_INT
TYPE(C_PTR), INTENT(IN), VALUE :: key
INTEGER(C_INT), INTENT(IN) :: keysize
END SUBROUTINE
!> Matrix-copy (2-dimensional copy) routine.
!> Implicit FORTRAN 77 interface:
!> ARRAY :: input, output
!> INTEGER(4|8) :: m, n, ldi, ldo
!> INTEGER(4) :: typesize
PURE SUBROUTINE libxsmm_xmatcopy(output, input, typesize, &
& m, n, ldi, ldo) BIND(C, NAME="libxsmm_matcopy_")
IMPORT :: LIBXSMM_BLASINT_KIND, C_PTR, C_INT
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: m, n, ldi, ldo
TYPE(C_PTR), INTENT(IN), VALUE :: output, input
INTEGER(C_INT), INTENT(IN) :: typesize
END SUBROUTINE
!> Transpose a matrix (in-place form).
!> Implicit FORTRAN 77 interface:
!> ARRAY :: matrix
!> INTEGER(4|8) :: m, n, ldi, ldo
!> INTEGER(4) :: typesize
PURE SUBROUTINE libxsmm_xitrans(matrix, typesize, &
& m, n, ldi, ldo) BIND(C, NAME="libxsmm_itrans_")
IMPORT :: C_PTR, C_INT, LIBXSMM_BLASINT_KIND
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: m, n, ldi, ldo
TYPE(C_PTR), INTENT(IN), VALUE :: matrix
INTEGER(C_INT), INTENT(IN) :: typesize
END SUBROUTINE
!> Transpose a matrix (out-of-place form).
!> Implicit FORTRAN 77 interface:
!> ARRAY :: input, output
!> INTEGER(4|8) :: m, n, ldi, ldo
!> INTEGER(4) :: typesize
PURE SUBROUTINE libxsmm_xotrans(output, input, typesize, &
& m, n, ldi, ldo) BIND(C, NAME="libxsmm_otrans_")
IMPORT :: C_PTR, C_INT, LIBXSMM_BLASINT_KIND
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: m, n, ldi, ldo
TYPE(C_PTR), INTENT(IN), VALUE :: output, input
INTEGER(C_INT), INTENT(IN) :: typesize
END SUBROUTINE
!> Matrix copy; MT via libxsmmext (out-of-place form).
!> Implicit FORTRAN 77 interface:
!> ARRAY :: output, input
!> INTEGER(4|8) :: m, n, ldi, ldo
!> INTEGER(4) :: typesize
PURE SUBROUTINE libxsmm_matcopy_omp(output, input, typesize, &
& m, n, ldi, ldo) BIND(C, NAME="libxsmm_matcopy_omp_")
IMPORT :: C_PTR, C_INT, LIBXSMM_BLASINT_KIND
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: m, n, ldi, ldo
TYPE(C_PTR), INTENT(IN), VALUE :: output, input
INTEGER(C_INT), INTENT(IN) :: typesize
END SUBROUTINE
!> Matrix transpose; MT via libxsmmext (out-of-place form).
!> Implicit FORTRAN 77 interface:
!> ARRAY :: output, input
!> INTEGER(4|8) :: m, n, ldi, ldo
!> INTEGER(4) :: typesize
PURE SUBROUTINE libxsmm_otrans_omp(output, input, typesize, &
& m, n, ldi, ldo) BIND(C, NAME="libxsmm_otrans_omp_")
IMPORT :: C_PTR, C_INT, LIBXSMM_BLASINT_KIND
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: m, n, ldi, ldo
TYPE(C_PTR), INTENT(IN), VALUE :: output, input
INTEGER(C_INT), INTENT(IN) :: typesize
END SUBROUTINE
!> Process a series of SMMs (batch).
!> See also libxsmm_gemm_batch/omp.
!> The kind of matrices (a, b, c) depend on index_stride:
!> index_stride==0: stride_* are each scalar strides used
!> to walk the corresponding a, b, or c
!> with each being an array of pointers
!> to the respective matrices.
!> index_stride!=0: stride_* are each scalar strides used
!> to walk the corresponding a, b, or c
!> with each being a pointer to the
!> respective matrix-data.
!> The index_stride is not used otherwise.
!> index_stride is non-zero (smaller than libxsmm_blasint):
!> stride_* indexes determining the start
!> of the corresponding a, b, or c
!> with each being a pointer to the
!> respective matrix-data.
!> The index_stride to walk stride_*.
!> Implicit FORTRAN 77 interface:
!> INTEGER(4) :: iprec, oprec
!> CHAR :: transa, transb
!> INTEGER(4|8) :: m, n, k, lda, ldb, ldc
!> REAL(4|8) :: alpha, beta
!> ARRAY :: a, b, c
!> ARRAY/VALUE :: stride_a, stride_b, stride_c
!> INTEGER(4|8) :: index_stride, index_base, batchsize
!> INTEGER(4) :: batchcheck, tid, ntasks
PURE SUBROUTINE libxsmm_xgemm_batch_task( &
& iprec, oprec, transa, transb, m, n, k, &
& alpha, a, lda, stride_a, b, ldb, stride_b, &
& beta, c, ldc, stride_c, index_stride, index_base, &
& batchsize, batchcheck, tid, ntasks) &
& BIND(C, NAME="libxsmm_gemm_batch_task_")
IMPORT :: C_PTR, C_CHAR, C_INT, LIBXSMM_BLASINT_KIND
!> Determines index-base (1 for one-based indexes).
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: index_base
!> Stride (measured in Bytes) used to walk stride_*.
!> In Fortran (usually): index_stride!=0.
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: index_stride
!> Number of SMMs. If the size is given as a neg. value,
!> then internal synchronization is omitted.
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: batchsize
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: m, n, k
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: lda, ldb, ldc
CHARACTER(C_CHAR), INTENT(IN) :: transa, transb
TYPE(C_PTR), INTENT(IN), VALUE :: alpha, beta
TYPE(C_PTR), INTENT(IN), VALUE :: a, b, c
!> Arrays of indexes determining the position of
!> a, b, and c operands.
TYPE(C_PTR), INTENT(IN), VALUE :: stride_a
TYPE(C_PTR), INTENT(IN), VALUE :: stride_b
TYPE(C_PTR), INTENT(IN), VALUE :: stride_c
INTEGER(C_INT), INTENT(IN) :: iprec, oprec, batchcheck
!> Task-ID (TID), and number of tasks.
INTEGER(C_INT), INTENT(IN) :: tid, ntasks
END SUBROUTINE
!> Process a series of SMMs (batch).
!> See also libxsmm_xgemm_batch_task.
!> Implicit FORTRAN 77 interface:
!> INTEGER(4) :: iprec, oprec, batchcheck
!> CHAR :: transa, transb
!> INTEGER(4|8) :: m, n, k, lda, ldb, ldc
!> REAL(4|8) :: alpha, beta
!> ARRAY :: a, b, c
!> ARRAY/VALUE :: stride_a, stride_b, stride_c
!> INTEGER(4|8) :: index_stride, index_base, batchsize
PURE SUBROUTINE libxsmm_xgemm_batch( &
& iprec, oprec, transa, transb, m, n, k, &
& alpha, a, lda, stride_a, b, ldb, stride_b, &
& beta, c, ldc, stride_c, index_stride, index_base, &
& batchsize, batchcheck) &
& BIND(C, NAME="libxsmm_gemm_batch_")
IMPORT :: C_PTR, C_CHAR, C_INT, LIBXSMM_BLASINT_KIND
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: index_base
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: index_stride
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: batchsize
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: m, n, k
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: lda, ldb, ldc
CHARACTER(C_CHAR), INTENT(IN) :: transa, transb
TYPE(C_PTR), INTENT(IN), VALUE :: alpha, beta
TYPE(C_PTR), INTENT(IN), VALUE :: a, b, c
TYPE(C_PTR), INTENT(IN), VALUE :: stride_a
TYPE(C_PTR), INTENT(IN), VALUE :: stride_b
TYPE(C_PTR), INTENT(IN), VALUE :: stride_c
INTEGER(C_INT), INTENT(IN) :: iprec, oprec, batchcheck
END SUBROUTINE
!> Process a series of SMMs (batch) with OpenMP (libxsmmext).
!> Implicit FORTRAN 77 interface:
!> INTEGER(4) :: iprec, oprec, batchcheck
!> CHAR :: transa, transb
!> INTEGER(4|8) :: m, n, k, lda, ldb, ldc
!> REAL(4|8) :: alpha, beta
!> ARRAY :: a, b, c
!> ARRAY/VALUE :: stride_a, stride_b, stride_c
!> INTEGER(4|8) :: index_stride, index_base, batchsize
PURE SUBROUTINE libxsmm_xgemm_batch_omp( &
& iprec, oprec, transa, transb, m, n, k, &
& alpha, a, lda, stride_a, b, ldb, stride_b, &
& beta, c, ldc, stride_c, index_stride, index_base, &
& batchsize, batchcheck) &
& BIND(C, NAME="libxsmm_gemm_batch_omp_")
IMPORT :: C_PTR, C_CHAR, C_INT, LIBXSMM_BLASINT_KIND
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: index_base
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: index_stride
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: batchsize
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: m, n, k
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: lda, ldb, ldc
CHARACTER(C_CHAR), INTENT(IN) :: transa, transb
TYPE(C_PTR), INTENT(IN), VALUE :: alpha, beta
TYPE(C_PTR), INTENT(IN), VALUE :: a, b, c
TYPE(C_PTR), INTENT(IN), VALUE :: stride_a
TYPE(C_PTR), INTENT(IN), VALUE :: stride_b
TYPE(C_PTR), INTENT(IN), VALUE :: stride_c
INTEGER(C_INT), INTENT(IN) :: iprec, oprec, batchcheck
END SUBROUTINE
!> Reduces input into output such that the difference is
!> maintained or increased (max function). The very first
!> (initial) output should be zeroed (libxsmm_matdiff_clear).
!> Implicit FORTRAN 77 interface: available.
PURE SUBROUTINE libxsmm_matdiff_reduce(output, input) BIND(C)
IMPORT :: LIBXSMM_MATDIFF_INFO
TYPE(LIBXSMM_MATDIFF_INFO), INTENT(INOUT) :: output
TYPE(LIBXSMM_MATDIFF_INFO), INTENT(IN) :: input
END SUBROUTINE
!> Clears the given info-structure, e.g., for the initial
!> reduction-value (libxsmm_matdiff_reduce).
!> Implicit FORTRAN 77 interface: available.
PURE SUBROUTINE libxsmm_matdiff_clear(info) BIND(C)
IMPORT :: LIBXSMM_MATDIFF_INFO
TYPE(LIBXSMM_MATDIFF_INFO), INTENT(OUT) :: info
END SUBROUTINE
!> Calculates a hash value for the given array and seed.
!> Routine suitable for FORTRAN 77; keysize in Bytes.
PURE SUBROUTINE libxsmm_xhash(hash_seed, key, keysize) &
& BIND(C, NAME="libxsmm_xhash_")
IMPORT :: C_INT, C_PTR
INTEGER(C_INT), INTENT(INOUT) :: hash_seed
INTEGER(C_INT), INTENT(IN) :: keysize
TYPE(C_PTR), INTENT(IN), VALUE :: key
END SUBROUTINE
!> Calculates if there is a difference between two arrays.
!> Routine suitable for FORTRAN 77; size in Bytes.
PURE SUBROUTINE libxsmm_xdiff(diff, a, b, nbytes) &
& BIND(C, NAME="libxsmm_xdiff_")
IMPORT :: C_PTR, C_LONG_LONG, C_BOOL
TYPE(C_PTR), INTENT(IN), VALUE :: a, b
INTEGER(C_LONG_LONG), INTENT(IN) :: nbytes
LOGICAL(C_BOOL), INTENT(OUT) :: diff
END SUBROUTINE
END INTERFACE
$MNK_INTERFACE_LIST
INTERFACE libxsmm_ptr0
MODULE PROCEDURE libxsmm_ptr_z0, libxsmm_ptr_c0
MODULE PROCEDURE libxsmm_ptr_d0, libxsmm_ptr_s0
MODULE PROCEDURE libxsmm_ptr_i0, libxsmm_ptr_w0
MODULE PROCEDURE libxsmm_ptr_j0 !! Byte/char
MODULE PROCEDURE libxsmm_ptr_b0 !! Byte/char
MODULE PROCEDURE libxsmm_ptr_l0 !! long long
END INTERFACE
INTERFACE libxsmm_ptr1
MODULE PROCEDURE libxsmm_ptr_z1, libxsmm_ptr_c1
MODULE PROCEDURE libxsmm_ptr_d1, libxsmm_ptr_s1
MODULE PROCEDURE libxsmm_ptr_i1, libxsmm_ptr_w1
MODULE PROCEDURE libxsmm_ptr_j1 !! Byte/char
MODULE PROCEDURE libxsmm_ptr_b1 !! Byte/char
MODULE PROCEDURE libxsmm_ptr_l1 !! long long
MODULE PROCEDURE libxsmm_ptr_dmm
MODULE PROCEDURE libxsmm_ptr_smm
END INTERFACE
INTERFACE libxsmm_ptr2
MODULE PROCEDURE libxsmm_ptr_z2, libxsmm_ptr_c2
MODULE PROCEDURE libxsmm_ptr_d2, libxsmm_ptr_s2
MODULE PROCEDURE libxsmm_ptr_i2, libxsmm_ptr_w2
MODULE PROCEDURE libxsmm_ptr_j2 !! Byte/char
MODULE PROCEDURE libxsmm_ptr_b2 !! Byte/char
MODULE PROCEDURE libxsmm_ptr_l2 !! long long
END INTERFACE
INTERFACE libxsmm_ptr
MODULE PROCEDURE libxsmm_ptr_z0, libxsmm_ptr_c0
MODULE PROCEDURE libxsmm_ptr_d0, libxsmm_ptr_s0
MODULE PROCEDURE libxsmm_ptr_i0, libxsmm_ptr_w0
MODULE PROCEDURE libxsmm_ptr_j0 !! Byte/char
MODULE PROCEDURE libxsmm_ptr_b0 !! Byte/char
MODULE PROCEDURE libxsmm_ptr_l0 !! long long
MODULE PROCEDURE libxsmm_ptr_z1, libxsmm_ptr_c1
MODULE PROCEDURE libxsmm_ptr_d1, libxsmm_ptr_s1
MODULE PROCEDURE libxsmm_ptr_i1, libxsmm_ptr_w1
MODULE PROCEDURE libxsmm_ptr_j1 !! Byte/char
MODULE PROCEDURE libxsmm_ptr_b1 !! Byte/char
MODULE PROCEDURE libxsmm_ptr_l1 !! long long
MODULE PROCEDURE libxsmm_ptr_z2, libxsmm_ptr_c2
MODULE PROCEDURE libxsmm_ptr_d2, libxsmm_ptr_s2
MODULE PROCEDURE libxsmm_ptr_i2, libxsmm_ptr_w2
MODULE PROCEDURE libxsmm_ptr_j2 !! Byte/char
MODULE PROCEDURE libxsmm_ptr_b2 !! Byte/char
MODULE PROCEDURE libxsmm_ptr_l2 !! long long
MODULE PROCEDURE libxsmm_ptr_dmm
MODULE PROCEDURE libxsmm_ptr_smm
END INTERFACE
!> Deallocates JIT'ted code, or unregisters and
!> releases code from registry.
INTERFACE libxsmm_release_mmkernel
MODULE PROCEDURE libxsmm_release_dmmkernel
MODULE PROCEDURE libxsmm_release_smmkernel
END INTERFACE
!> Construct JIT-code depending on given argument set.
INTERFACE libxsmm_mmdispatch
MODULE PROCEDURE libxsmm_dmmdispatch, libxsmm_smmdispatch
END INTERFACE
!> Construct JIT-code depending on given argument set.
INTERFACE libxsmm_dispatch
MODULE PROCEDURE libxsmm_dmmdispatch, libxsmm_smmdispatch
END INTERFACE
!> Check if a function is available (LIBXSMM_?MMFUNCTION).
INTERFACE libxsmm_mmavailable
MODULE PROCEDURE libxsmm_dmmavailable, libxsmm_smmavailable
END INTERFACE
!> Check if a function is available (LIBXSMM_?MMFUNCTION).
INTERFACE libxsmm_available
MODULE PROCEDURE libxsmm_smmavailable, libxsmm_dmmavailable
END INTERFACE
!> Overloaded GEMM routines (double-precision).
INTERFACE libxsmm_dgemm
MODULE PROCEDURE libxsmm_dgemm0
MODULE PROCEDURE libxsmm_dgemm1
MODULE PROCEDURE libxsmm_dgemm2
MODULE PROCEDURE libxsmm_dgemm3
END INTERFACE
!> Overloaded GEMM routines (single-precision).
INTERFACE libxsmm_sgemm
MODULE PROCEDURE libxsmm_sgemm0
MODULE PROCEDURE libxsmm_sgemm1
MODULE PROCEDURE libxsmm_sgemm2
END INTERFACE
!> Overloaded GEMM routines.
INTERFACE libxsmm_gemm
MODULE PROCEDURE libxsmm_dgemm0
MODULE PROCEDURE libxsmm_dgemm1
MODULE PROCEDURE libxsmm_dgemm2
MODULE PROCEDURE libxsmm_dgemm3
MODULE PROCEDURE libxsmm_sgemm0
MODULE PROCEDURE libxsmm_sgemm1
MODULE PROCEDURE libxsmm_sgemm2
MODULE PROCEDURE libxsmm_sgemm3
END INTERFACE
!> Overloaded BLAS GEMM routines (double-precision).
INTERFACE libxsmm_blas_dgemm
MODULE PROCEDURE libxsmm_blas_dgemm0
MODULE PROCEDURE libxsmm_blas_dgemm1
MODULE PROCEDURE libxsmm_blas_dgemm2
MODULE PROCEDURE libxsmm_blas_dgemm3
END INTERFACE
!> Overloaded BLAS GEMM routines (single-precision).
INTERFACE libxsmm_blas_sgemm
MODULE PROCEDURE libxsmm_blas_sgemm0
MODULE PROCEDURE libxsmm_blas_sgemm1
MODULE PROCEDURE libxsmm_blas_sgemm2
MODULE PROCEDURE libxsmm_blas_sgemm3
END INTERFACE
!> Overloaded BLAS GEMM routines (single/double-precision).
INTERFACE libxsmm_blas_gemm
MODULE PROCEDURE libxsmm_blas_dgemm0
MODULE PROCEDURE libxsmm_blas_dgemm1
MODULE PROCEDURE libxsmm_blas_dgemm2
MODULE PROCEDURE libxsmm_blas_dgemm3
MODULE PROCEDURE libxsmm_blas_sgemm0
MODULE PROCEDURE libxsmm_blas_sgemm1
MODULE PROCEDURE libxsmm_blas_sgemm2
MODULE PROCEDURE libxsmm_blas_sgemm3
END INTERFACE
!> Overloaded MATCOPY routines (2d-copy).
INTERFACE libxsmm_matcopy
MODULE PROCEDURE libxsmm_matcopy_p0
MODULE PROCEDURE libxsmm_matcopy_d1
MODULE PROCEDURE libxsmm_matcopy_d2
MODULE PROCEDURE libxsmm_matcopy_s1
MODULE PROCEDURE libxsmm_matcopy_s2
END INTERFACE
!> Overloaded TRANSPOSE routines (in-place form).
INTERFACE libxsmm_itrans
MODULE PROCEDURE libxsmm_itrans_p0
MODULE PROCEDURE libxsmm_itrans_d1
MODULE PROCEDURE libxsmm_itrans_d2
MODULE PROCEDURE libxsmm_itrans_s1
MODULE PROCEDURE libxsmm_itrans_s2
END INTERFACE
!> Overloaded TRANSPOSE routines (out-of-place form).
INTERFACE libxsmm_otrans
MODULE PROCEDURE libxsmm_otrans_p0
MODULE PROCEDURE libxsmm_otrans_d1
MODULE PROCEDURE libxsmm_otrans_d2
MODULE PROCEDURE libxsmm_otrans_s1
MODULE PROCEDURE libxsmm_otrans_s2
END INTERFACE
!> Calculate a hash value for a given key value (binary blob).
!> Conceptually pure, but C_LOC may be (incorrectly) impure.
INTERFACE libxsmm_hash
MODULE PROCEDURE libxsmm_hash_char
MODULE PROCEDURE libxsmm_hash_i8
MODULE PROCEDURE libxsmm_hash_i32
MODULE PROCEDURE libxsmm_hash_i64
END INTERFACE
!> Calculate whether there is a difference between two series
!> of items. Conceptually pure, but C_LOC may be
!> (incorrectly) impure.
INTERFACE libxsmm_diff
MODULE PROCEDURE libxsmm_diff_char
MODULE PROCEDURE libxsmm_diff_i8
MODULE PROCEDURE libxsmm_diff_i32
MODULE PROCEDURE libxsmm_diff_i64
END INTERFACE
CONTAINS
!> Returns the name of the target architecture as determined
!> by the CPUID flags, as set by the libxsmm_get_target_arch*
!> functions, or as set by the LIBXSMM_TARGET environment
!> variable.
FUNCTION libxsmm_get_target_arch()
!CHARACTER(LEN=:), POINTER :: libxsmm_get_target_arch
CHARACTER, POINTER :: libxsmm_get_target_arch(:)
INTEGER(C_INT) :: length(1)
TYPE(C_PTR) :: arch
INTERFACE
FUNCTION libxsmmf_get_target_arch(length) BIND(C)
IMPORT :: C_INT, C_PTR
INTEGER(C_INT), INTENT(OUT) :: length
TYPE(C_PTR) :: libxsmmf_get_target_arch
END FUNCTION
END INTERFACE
arch = libxsmmf_get_target_arch(length(1))
CALL C_F_POINTER(arch, libxsmm_get_target_arch, length)
END FUNCTION
!> Returns C_NULL_PTR.
PURE FUNCTION libxsmm_ptr_null()
TYPE(C_PTR) :: libxsmm_ptr_null
libxsmm_ptr_null = C_NULL_PTR
END FUNCTION
!> Determines the C-address of the given array.
FUNCTION libxsmm_ptr_z0(a)
COMPLEX(C_DOUBLE_COMPLEX), INTENT(IN), TARGET :: a
TYPE(C_PTR) :: libxsmm_ptr_z0
libxsmm_ptr_z0 = C_LOC(a)
END FUNCTION
FUNCTION libxsmm_ptr_z1(a)
COMPLEX(C_DOUBLE_COMPLEX), INTENT(IN), TARGET :: a(*)
TYPE(C_PTR) :: libxsmm_ptr_z1
libxsmm_ptr_z1 = C_LOC(a)
END FUNCTION
FUNCTION libxsmm_ptr_z2(a)
COMPLEX(C_DOUBLE_COMPLEX), INTENT(IN) :: a(:,:)
TYPE(C_PTR) :: libxsmm_ptr_z2
libxsmm_ptr_z2 = libxsmm_ptr_z1(a)
END FUNCTION
!> Determines the C-address of the given array.
FUNCTION libxsmm_ptr_c0(a)
COMPLEX(C_FLOAT_COMPLEX), INTENT(IN), TARGET :: a
TYPE(C_PTR) :: libxsmm_ptr_c0
libxsmm_ptr_c0 = C_LOC(a)
END FUNCTION
FUNCTION libxsmm_ptr_c1(a)
COMPLEX(C_FLOAT_COMPLEX), INTENT(IN), TARGET :: a(*)
TYPE(C_PTR) :: libxsmm_ptr_c1
libxsmm_ptr_c1 = C_LOC(a)
END FUNCTION
FUNCTION libxsmm_ptr_c2(a)
COMPLEX(C_FLOAT_COMPLEX), INTENT(IN) :: a(:,:)
TYPE(C_PTR) :: libxsmm_ptr_c2
libxsmm_ptr_c2 = libxsmm_ptr_c1(a)
END FUNCTION
!> Determines the C-address of the given array.
FUNCTION libxsmm_ptr_d0(a)
REAL(C_DOUBLE), INTENT(IN), TARGET :: a
TYPE(C_PTR) :: libxsmm_ptr_d0
libxsmm_ptr_d0 = C_LOC(a)
END FUNCTION
FUNCTION libxsmm_ptr_d1(a)
REAL(C_DOUBLE), INTENT(IN), TARGET :: a(*)
TYPE(C_PTR) :: libxsmm_ptr_d1
libxsmm_ptr_d1 = C_LOC(a)
END FUNCTION
FUNCTION libxsmm_ptr_d2(a)
REAL(C_DOUBLE), INTENT(IN) :: a(:,:)
TYPE(C_PTR) :: libxsmm_ptr_d2
libxsmm_ptr_d2 = libxsmm_ptr_d1(a)
END FUNCTION
!> Determines the C-address of the given array.
FUNCTION libxsmm_ptr_s0(a)
REAL(C_FLOAT), INTENT(IN), TARGET :: a
TYPE(C_PTR) :: libxsmm_ptr_s0
libxsmm_ptr_s0 = C_LOC(a)
END FUNCTION
FUNCTION libxsmm_ptr_s1(a)
REAL(C_FLOAT), INTENT(IN), TARGET :: a(*)
TYPE(C_PTR) :: libxsmm_ptr_s1
libxsmm_ptr_s1 = C_LOC(a)
END FUNCTION
FUNCTION libxsmm_ptr_s2(a)
REAL(C_FLOAT), INTENT(IN) :: a(:,:)
TYPE(C_PTR) :: libxsmm_ptr_s2
libxsmm_ptr_s2 = libxsmm_ptr_s1(a)
END FUNCTION
!> Determines the C-address of the given array.
FUNCTION libxsmm_ptr_i0(a)
INTEGER(C_INT), INTENT(IN), TARGET :: a
TYPE(C_PTR) :: libxsmm_ptr_i0
libxsmm_ptr_i0 = C_LOC(a)
END FUNCTION
FUNCTION libxsmm_ptr_i1(a)
INTEGER(C_INT), INTENT(IN), TARGET :: a(*)
TYPE(C_PTR) :: libxsmm_ptr_i1
libxsmm_ptr_i1 = C_LOC(a)
END FUNCTION
FUNCTION libxsmm_ptr_i2(a)
INTEGER(C_INT), INTENT(IN) :: a(:,:)
TYPE(C_PTR) :: libxsmm_ptr_i2
libxsmm_ptr_i2 = libxsmm_ptr_i1(a)
END FUNCTION
!> Determines the C-address of the given array.
FUNCTION libxsmm_ptr_w0(a)
INTEGER(C_SHORT), INTENT(IN), TARGET :: a
TYPE(C_PTR) :: libxsmm_ptr_w0
libxsmm_ptr_w0 = C_LOC(a)
END FUNCTION
FUNCTION libxsmm_ptr_w1(a)
INTEGER(C_SHORT), INTENT(IN), TARGET :: a(*)
TYPE(C_PTR) :: libxsmm_ptr_w1
libxsmm_ptr_w1 = C_LOC(a)
END FUNCTION
FUNCTION libxsmm_ptr_w2(a)
INTEGER(C_SHORT), INTENT(IN) :: a(:,:)
TYPE(C_PTR) :: libxsmm_ptr_w2
libxsmm_ptr_w2 = libxsmm_ptr_w1(a)
END FUNCTION
!> Determines the C-address of the given array.
FUNCTION libxsmm_ptr_j0(a)
INTEGER(C_INT8_T), INTENT(IN), TARGET :: a
TYPE(C_PTR) :: libxsmm_ptr_j0
libxsmm_ptr_j0 = C_LOC(a)
END FUNCTION
FUNCTION libxsmm_ptr_j1(a)
INTEGER(C_INT8_T), INTENT(IN), TARGET :: a(*)
TYPE(C_PTR) :: libxsmm_ptr_j1
libxsmm_ptr_j1 = C_LOC(a)
END FUNCTION
FUNCTION libxsmm_ptr_j2(a)
INTEGER(C_INT8_T), INTENT(IN) :: a(:,:)
TYPE(C_PTR) :: libxsmm_ptr_j2
libxsmm_ptr_j2 = libxsmm_ptr_j1(a)
END FUNCTION
!> Determines the C-address of the given array.
FUNCTION libxsmm_ptr_b0(a)
CHARACTER(C_CHAR), INTENT(IN), TARGET :: a
TYPE(C_PTR) :: libxsmm_ptr_b0
libxsmm_ptr_b0 = C_LOC(a)
END FUNCTION
FUNCTION libxsmm_ptr_b1(a)
CHARACTER(C_CHAR), INTENT(IN), TARGET :: a(*)
TYPE(C_PTR) :: libxsmm_ptr_b1
libxsmm_ptr_b1 = C_LOC(a)
END FUNCTION
FUNCTION libxsmm_ptr_b2(a)
CHARACTER(C_CHAR), INTENT(IN) :: a(:,:)
TYPE(C_PTR) :: libxsmm_ptr_b2
libxsmm_ptr_b2 = libxsmm_ptr_b1(a)
END FUNCTION
!> Determines the C-address of the given array.
FUNCTION libxsmm_ptr_l0(a)
INTEGER(C_LONG_LONG), INTENT(IN), TARGET :: a
TYPE(C_PTR) :: libxsmm_ptr_l0
libxsmm_ptr_l0 = C_LOC(a)
END FUNCTION
FUNCTION libxsmm_ptr_l1(a)
INTEGER(C_LONG_LONG), INTENT(IN), TARGET :: a(*)
TYPE(C_PTR) :: libxsmm_ptr_l1
libxsmm_ptr_l1 = C_LOC(a)
END FUNCTION
FUNCTION libxsmm_ptr_l2(a)
INTEGER(C_LONG_LONG), INTENT(IN) :: a(:,:)
TYPE(C_PTR) :: libxsmm_ptr_l2
libxsmm_ptr_l2 = libxsmm_ptr_l1(a)
END FUNCTION
FUNCTION libxsmm_ptr_dmm(a)
TYPE(LIBXSMM_DMMFUNCTION), INTENT(IN), TARGET :: a(:)
TYPE(LIBXSMM_DMMFUNCTION), POINTER :: p
TYPE(C_PTR) :: libxsmm_ptr_dmm
p => a(LBOUND(a,1)); libxsmm_ptr_dmm = C_LOC(p%handle)
END FUNCTION
FUNCTION libxsmm_ptr_smm(a)
TYPE(LIBXSMM_SMMFUNCTION), INTENT(IN), TARGET :: a(:)
TYPE(LIBXSMM_SMMFUNCTION), POINTER :: p
TYPE(C_PTR) :: libxsmm_ptr_smm
p => a(LBOUND(a,1)); libxsmm_ptr_smm = C_LOC(p%handle)
END FUNCTION
!> Deallocate JIT'ted code created by libxsmm_create routines.
!> To unregister code generated with libxsmm_dispatch
!> is unnecessary.
SUBROUTINE libxsmm_release_dmmkernel(kernel)
TYPE(LIBXSMM_DMMFUNCTION), INTENT(IN) :: kernel
CALL libxsmm_release_kernel(kernel%handle)
END SUBROUTINE
!> Deallocate JIT'ted code created by libxsmm_create routines.
!> To unregister code generated with libxsmm_dispatch
!> is unnecessary.
SUBROUTINE libxsmm_release_smmkernel(kernel)
TYPE(LIBXSMM_SMMFUNCTION), INTENT(IN) :: kernel
CALL libxsmm_release_kernel(kernel%handle)
END SUBROUTINE
!> Query or JIT-generate an SMM-kernel (double-precision).
SUBROUTINE libxsmm_dmmdispatch(kernel, &
& m, n, k, lda, ldb, ldc, alpha, beta, flags, prefetch)
TYPE(LIBXSMM_DMMFUNCTION), INTENT(OUT) :: kernel
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: m, n, k
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN), &
& OPTIONAL, TARGET :: lda, ldb, ldc
REAL(C_DOUBLE), INTENT(IN), OPTIONAL, TARGET :: alpha, beta
INTEGER(C_INT), INTENT(IN), OPTIONAL, TARGET :: flags
INTEGER(C_INT), INTENT(IN), OPTIONAL, TARGET :: prefetch
CALL libxsmm_xmmdispatch( &
& kernel%handle, LIBXSMM_DATATYPE_F64, &
& m, n, k, C_LOC(lda), C_LOC(ldb), C_LOC(ldc), &
& C_LOC(alpha), C_LOC(beta), C_LOC(flags), C_LOC(prefetch))
END SUBROUTINE
!> Query or JIT-generate an SMM-kernel (single-precision).
SUBROUTINE libxsmm_smmdispatch(kernel, &
& m, n, k, lda, ldb, ldc, alpha, beta, flags, prefetch)
TYPE(LIBXSMM_SMMFUNCTION), INTENT(OUT) :: kernel
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN) :: m, n, k
INTEGER(LIBXSMM_BLASINT_KIND), INTENT(IN), &
& OPTIONAL, TARGET :: lda, ldb, ldc
REAL(C_FLOAT), INTENT(IN), OPTIONAL, TARGET :: alpha, beta
INTEGER(C_INT), INTENT(IN), OPTIONAL, TARGET :: flags
INTEGER(C_INT), INTENT(IN), OPTIONAL, TARGET :: prefetch
CALL libxsmm_xmmdispatch( &
& kernel%handle, LIBXSMM_DATATYPE_F32, &
& m, n, k, C_LOC(lda), C_LOC(ldb), C_LOC(ldc), &
& C_LOC(alpha), C_LOC(beta), C_LOC(flags), C_LOC(prefetch))
END SUBROUTINE
!> Checks if the given kernel was generated. JIT code is
!> guaranteed to be generated if JIT support was enabled
!> at build-time of the library (default).
!> This overload belongs to libxsmm_(mm)available.
LOGICAL FUNCTION libxsmm_dmmavailable(kernel)
TYPE(LIBXSMM_DMMFUNCTION), INTENT(IN) :: kernel