dgemm example fortran

After you unzip the Error Status 2.1.2. cuBLAS Context 2.1.3. PRINT *, "This example computes real matrix C=alpha*A*B+beta*C" Forgot your Intelusername # Are you sure you want to create this branch? and I want to store ther result in C(N,N), where LDA=LDB=LDC=N and TRANSA(B) can be an operation on the matrix A(B), N = use the A matrix as it is In this paper, we investigate different implementations of TeaLeaf, a mini-application from the Mantevo suite that solves the linear heat conduction equation. PRINT 30, ((C(I,J), J = 1,MIN(N,6)), I = 1,MIN(M,6)) Dont have an Intel account? The deprecated support for PCRE versions older than 8.20 has been removed. RETURN A Fast Parallel Cholesky Decomposition Algorithm for Tridiagonal #SvenHammarling,NagCentralOffice. #Level2Blasroutine. . Altra Q80-33 2P. Required fields are marked *. #accessedsequentiallywithonepassthroughA. 147 *> contain the matrix C, except when beta is zero, in which. Calculating probabilities from d6 dice pool (Degenesis rules for botches and triggers), ERROR: CREATE MATERIALIZED VIEW WITH DATA cannot be executed from a function. I am trying to statically link a blas library mingw compiled without underscores, with a library that uses underscoring for symbols, so for example the dgemm_ symbol cannot be found during linking. DO100,J=1,N Find centralized, trusted content and collaborate around the technologies you use most. CALLXERBLA('DGEMV',INFO) for non-Intel microprocessors for optimizations that are not unique to Intel IF(INCY==1)THEN dgemm to compute the product of the matrices. You can also try the quick links below to see results for most popular searches. IF(INCX>0)THEN ELSE By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. 3) Another possibility is to use operations different from N, for example the transpose T of the hermitian C, for example this two codes are equivalent but the second is faster and use less memory: notice that the LDA and LDB specify the entry dimension of the matrix A and B, therefore in the second case the entry dimension is the first dimension of the original matrices A and B, while in the first example it corresponds to the one of transpose(A) and transpose(B). After extracting the folder you can find the example of dgemm_batch in blas/source folder. #Unchangedonexit. ELSEIF(INCY==0)THEN document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); This site uses Akismet to reduce spam. Are there tables of wastage rates for different fruit and veg? sgemmscalapackdgemm-fortranlapackblas Cache Configuration 2.1.9. C = hermitian op(A) = AH. Y(IY)=ZERO 120CONTINUE # # Parameters # ===== # The Intel sign-in experience has changed to support enhanced security controls. For each array argument, the Java version will include an integer offset parameter, so Contact seymour@cs.utk.eduwith any questions. DOUBLEPRECISIONONE,ZERO vienna-rna 2.5.1%2Bdfsg-1. Leading dimension of array C, or the number of elements between successive columns (for column major storage) in memory. # DO I = 1, M LENX=N PRINT *, "" aaaltra - openbenchmarking.org # You can call LAPACK and BLAS functions from Fortran MEX files. ELSE #LDA-INTEGER. #(1+(n-1)*abs(INCY))otherwise. This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. LAPACK routines have to be imported individually using the LAPACK | Programming in Modern Fortran - DABAMOS.de 20 FORMAT(6(F12.0,1x)) #Y-DOUBLEPRECISIONarrayofDIMENSIONatleast DOUBLEPRECISIONALPHA,BETA Compiling Fortran CUBLAS example - NVIDIA Developer Forums blas - undefined reference to `dgemm_' in gfortran in windows subsystem Refer to the reference manual for additional documentation. Windows* OS: build build run_dgemm_example; Linux* OS, macOS*: make make run_dgemm_example; For the executables in this tutorial, the build scripts are named: #Onentry,INCYspecifiestheincrementfortheelementsof Procceeding to close the question. TEMP=ZERO IF(X(JX)!=ZERO)THEN IF((M==0)||(N==0)|| #.. I saw https://software.intel.com/content/www/us/en/develop/articles/introducing-batch-gemm-operations.html, mentioned batch DGEMM with an example in C. It mentioned, " It has Fortran 77 and Fortran 95 APIs, and also CBLAS bindings. # # END DO #Onentry,LDAspecifiesthefirstdimensionofAasdeclared scipy.linalg.blas.dgemm(alpha, a, b[, beta, c, trans_a, trans_b, overwrite_c]) = <fortran object> # Wrapper for dgemm. DO10,I=1,LENY For example, DGEMM computes general matrix-matrix products, while DSYMM computes symmetric times general matrix-matrix product. Intels products and software are intended only to be used in applications that do not cause or contribute to a violation of an internationally recognized human right. Go to: [ bottom of page] [ top of archives] [ this month] From: <pkg-fallout_at_FreeBSD.org> Date: Thu, 28 Oct 2021 01:49:10 UTC Thu, 28 Oct 2021 01:49:10 UTC BUG FIXES. To compile and link the exercises in this tutorial with Intel Parallel Studio XE Composer Edition, type. Note: The NVBLAS Makefile is hard-coded for Summit. #Formy:=alpha*A'*x+y. The following example takes two matrices and multiplies them by calling the BLAS routine dgemm. Because IM is a derived type, it isn't obvious what =, <, write do.n=0 may or . A tag already exists with the provided branch name. ENDIF rows. IF(X(JX)!=ZERO)THEN rev2023.3.3.43278. [package - 130amd64-quarterly][biology/treekin] Failed for treekin-0.5.1_3 in build. // Performance varies by use, configuration and other factors. You can easily search the entire Intel.com site in several ways. IF(LSAME(TRANS,'N'))THEN TEMP=ZERO GUID-36BFBCE9-EB0A-43B0-ADAF-2B65275726EA. #vectorx. Correct ld link PROVIDE syntax for translating symbol names For example, you can perform this operation with the transpose or conjugate transpose of A and B. # Thank you for spending some time to describe all of this out for folks. Intel Math Kernel Library Reference Manual. # https://software.intel.com/content/www/us/en/develop/documentation/onemkl-developer-reference-fortra You can find the examples in oneAPI/mkl/latest/examples folder and extract the examples_core_f.zip. So I decided to write a simple guide to c/z-gemm in fortran. We selected an optimal algorithm from the instruction set perspective as well software tools optimized for Intel Advance Vector Extensions (AVX). Effective Implementation of DGEMM on Modern Multicore CPU The example program solves the following system of linear equations with LAPACK: The LAPACK subroutine sgesv()computes the solution to a real system of linear equations AX = B, where Ais an n-by-nmatrix, and Xand Bare n-by-nrhsmatrices. mkl [here] ifort -mkl dgemm_example.f ./ a.outlibmkl_intel_lp64.so WhenBETAis INTRINSICMAX #Onentry,TRANSspecifiestheoperationtobeperformedas Multiplying Matrices Using dgemm Multiplying Matrices Using dgemm - Intel Dont have an Intel account? Perhaps I don't need "CblasRowMajor". Since I do not use so often BLAS library for matrix-matrix multiplication, when I have to multiply two matrices with some rectangular shape or with additional operation I always get confused. 110CONTINUE It really is a great help! Forgot your Intelusername Sometimes it is confusing knowing what is a low-level BLAS. Sign in here. Do you work for Intel? ExternalFunctions.. In this paper we will present a detailed study on tuning double-precision matrix-matrix multiplication (DGEMM) on the Intel Xeon E5-2680 CPU. Sign up here A simple guide to s/d/c/z-gemm in Fortran. KY=1 To compile and link the exercises in this tutorial with Intel Parallel Studio XE Composer Edition, type. The Fortran source code for the exercises in this tutorial. ENDIF Keeping this sequence of operations in mind, let's look at a CUDA Fortran example. In the case of this exercise the leading dimension is the same as the number of PRINT *, "Initializing data for matrix multiplication C=A*B for " #Testtheinputparameters. LENX=M DO40,I=1,LENY #..IntrinsicFunctions.. In the case of this exercise the leading dimension is the same as the number of If you require any additional assistance from Intel, please start a new thread. $! A, or the number of elements between successive Y(IY)=Y(IY)+TEMP*A(I,J) #..Parameters.. C. Leading dimension of array Multiplying Matrices Using dgemm - UFRJ #y:=alpha*A*x+beta*y,ory:=alpha*A'*x+beta*y, Please let us know here why this post is inappropriate. File: ac_rna_features.m4 | Debian Sources Re: Fedora 32 System-Wide Change proposal: x86-64 micro-architecture update DO J = 1, N We have received your request and will respond promptly. #follows: ENDIF It's surprising that your code compiled ran at all. ENDIF That's right Mark. DO20,I=1,LENY Thanks for accepting as a Solution. END DO [package - 130arm64-quarterly][biology/treekin] Failed for treekin-0.5.1_3 in build. ELSE Alternatively, you can use the supplied build scripts to build and run the executables. Ask questions and share information with other developers who use Intel Math Kernel Library. INFO=2 JY=KY IF(INCX==1)THEN #Unchangedonexit. 100CONTINUE Intel technologies may require enabled hardware, software or service activation. Thanks for your help! I would like to multiply two arrays in Fortran using DGEMM (BLAS procedure). Is there any example for Fortran about batch DGEMM? You may re-send via your dgemm to compute the product of the matrices. subroutine dgemv ( trans, m, n, alpha, a, lda, x, incx, $ beta, y, incy ) # .. scalar arguments .. double precision alpha, beta integer incx, incy, lda, m, n Fortran END, This exercise illustrates how to call the, CALL DGEMM('N','N',M,N,K,ALPHA,A,M,B,K,BETA,C,M). Why are Suriname, Belize, and Guinea-Bissau classified as "Small Island Developing States"? This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice. Example Code 2. Alternatively, you can use the supplied build scripts to build and run the executables. You may re-send via your, Intel Connectivity Research Program (Private), oneAPI Registration, Download, Licensing and Installation, Intel Trusted Execution Technology (Intel TXT), Intel QuickAssist Technology (Intel QAT), Gaming on Intel Processors with Intel Graphics, https://software.intel.com/content/www/us/en/develop/articles/introducing-batch-gemm-operations.html. dgemm.f - SourceForge #--Writtenon22-October-1986. IY=IY+INCY Why is this sentence from The Great Gatsby grammatical? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. *Eng-Tips's functionality depends on members receiving e-mail. #SetLENXandLENY,thelengthsofthevectorsxandy,andset In the LAPACK library, matrix factorization functions are implemented with blocked factorization algorithm, shifting . Initialize host data. gfortran has host_data support now, so I wanted to test DGEMM from cuBLAS. INTEGER M, K, N, I, J LENY=M IF(INFO!=0)THEN DO30,I=1,LENY a sample Makefile, with some useful compiler options, basic_dgemm.c a very simple square_dgemm implementation, blocked_dgemm.c a slightly more complex square_dgemm implementation basic_fdgemm.f a very simple Fortran square_dgemm implementation, f2c_dgemm.c a wrapper that lets the C driver program call the Fortran implementation, # #Parameters In the case of this exercise the leading dimension is the same as the number of rows. LSAME(TRANS,'C'))THEN You should follow Intel's website to set the compiler flags for gfortran + MKL. Making statements based on opinion; back them up with references or personal experience. This exercise demonstrates declaring variables, storing matrix values in the arrays, and calling dgemm to compute the product of the matrices. Y(JY)=Y(JY)+ALPHA*TEMP The above code works. #Onentry,MspecifiesthenumberofrowsofthematrixA. Processor: AMD Ryzen 7 5700G @ 3.80GHz (8 Cores / 16 Threads), Motherboard: BESSTAR TECH LIMITED B550 (5.17 BIOS), Chipset: AMD Renoir/Cezanne, Memory: 32GB, Disk: 512GB KINGSTON OM8PDP3512B-A01 + 2000GB Seagate ST2000LM015-2E81 + 6001GB Elements 25A3, Graphics: AMD Radeon Vega / Mobile 512MB (2000/400MHz), Audio: AMD Renoir Radeon HD Audio, Monitor: SAMSUNG, Network . Learn more at www.Intel.com/PerformanceIndex. scipy.linalg.blas.dgemm SciPy v1.10.1 Manual dgemm routine multiplies the matrices: The arguments provide options for how Intel MKL performs the operation. For example, you can perform this operation with the transpose or conjugate transpose of A and B. Oct 26, 2011 #4 KStolen. # Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. Hi! An Optimized Framework for Matrix Factorization on the New Sunway Many ELSEIF(INCX==0)THEN orpassword? These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Table 1 shows the running times, observed on a DEC Alpha 7000 Model 660 Super Scalar machine, of the following routines: the BLAS routine \dgemm" which performs matrix mul- tiplication; the LAPACK routines \dpotrf" and \dpbtrf" [1] which perform the Cholesky decomposition on dense and tridiagonal matrices, respectively; the private routine . You can also try the quick links below to see results for most popular searches. IMPLICIT NONE PRINT *, "" Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2, Undefined Reference, Error Linking Plplot with GFortran, DGEMM and Numerical Constants as Arguments, gfortran 4.8.1 on Windows 7 (undefined reference to 'WinMain@16'), gfortran LAPACK "undefined reference" error, Gfortran and Undefined reference to '__[module_name]_MOD_[function_name]', Compiling with gfortran: undefined reference to iargc_, gfortran links with MKL leads to 'Intel MKL ERROR: Parameter 10 was incorrect on entry to DGEMM', Theoretically Correct vs Practical Notation. A First CUDA Fortran Program This exercise illustrates how to call the dgemm routine. DOUBLE PRECISION ALPHA, BETA Sign up here For example, for the class which represents multiplication subroutines, there are attributes to de-termine which specific multiplication subroutine to be called, attributes to pass the multiplication coefficient, attributes to determine how to reorder the indices in the multiplication component quantities, etc. Observation: As opposed to sample 1, the compiler must be explicitly instructed that the function dgemm_ has C linkage and thus no mangling should be attempted. 30CONTINUE Login. # functionality, or effectiveness of any optimization on microprocessors not B should not be transposed or conjugate transposed before multiplication. Promoting, selling, recruiting, coursework and thesis posting is forbidden. Sample 2 This program contains a C++ invocation of the Fortran BLAS function dgemm_ provided by the ATLAS framework. HTML image of Fortran source automatically generated by PROGRAM MAIN TEMP=ALPHA*X(JX) ENDIF Integers indicating the size of the matrices: Real value used to scale the product of matrices A and B. #TRANS-CHARACTER*1. # Thanks. Your email address will not be published. END DO of California Berkeley, Univ. Please refer to the applicable product User and Reference Guides for more # 70CONTINUE RETURN JX=JX+INCX #max(1,m). columns (for column major storage) in memory. The arrays are used to store these matrices: The one-dimensional arrays in the exercises store the matrices by placing the elements of each column in successive cells of the arrays. dgemm routine, which calculates the product of double precision matrices: The Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Please click the verification link in your email. Visible to Intel only Basic Linear Algebra Subprograms (BLAS) is a specification that prescribes a set of low-level routines for performing common linear algebra operations such as vector addition, scalar multiplication, dot products, linear combinations, and matrix multiplication.They are the de facto standard low-level routines for linear algebra libraries; the routines have bindings for both C ("CBLAS interface . PRINT *, "are matrices and alpha and beta are double precision " Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. Solve Ax=B where B is a matrix in parallell - Computational Science Do you work for Intel? ". An Easy Introduction to CUDA Fortran | NVIDIA Technical Blog #Onentry,BETAspecifiesthescalarbeta. In the case of this exercise the leading dimension is the same as the number of are intended for use with Intel microprocessors. C(I,J) = 0.0 information regarding the specific instruction sets covered by this notice. #Unchangedonexit. nm -S libmwblas.lib | grep dgemm 0000000000000000 I __imp_dgemm 0000000000000000 T dgemm nm -S libdmumps.a | grep dgemm U dgemm_ Wikizero - FLOPS Cannot retrieve contributors at this time. I have the following Fortran code from https://software.intel.com/content/www/us/en/develop/documentation/mkl-tutorial-fortran/top/multiplying-matrices-using-dgemm.html, I am trying to use gfortran complile it (named as dgemm.f90), By gfortran -lblas -llapack dgemm.f90, I got, I searched that this type of question has been asked time to time, but I haven't found a solution for my case :(, I tried to use python load blas, based on https://software.intel.com/content/www/us/en/develop/articles/using-intel-mkl-in-your-python-programs.html. GUID-36BFBCE9-EB0A-43B0-ADAF-2B65275726EA, Tutorial: Using the Intel oneAPI Math Kernel Library (oneMKL) for Matrix Multiplication, Introduction to the Intel oneAPI Math Kernel Library, Measuring Performance with oneMKL Support Functions, http://software.intel.com/en-us/articles/intel-mkl-link-line-advisor/, Intel oneAPI Math Kernel Library Knowledge Base, Click here for more Getting Started Tutorials. I have written a simple program: [code] program matrix implicit none double pre ENDIF Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Leading dimension of array # In the case of this exercise the leading dimension is the same as the number of rows. To learn more, see our tips on writing great answers. Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. #Unchangedonexit. INFO=6 http://software.intel.com/en-us/articles/intel-mkl-link-line-advisor/. Click Here to join Eng-Tips and talk with other members! #.. 10 FORMAT(a,I5,a,I5,a,I5,a,I5,a) ENDIF ?gemm topic in the PRINT *, "subroutine" Although Intel MKL supports Fortran 90 and later, the exercises in this tutorial use FORTRAN 77 for compatibility with as many versions of Fortran as possible. Using BLAS and LAPACK from C/C++ - LIMARE PRINT *, "Example completed." Y(I)=Y(I)+TEMP*A(I,J) . #EndofDGEMV. # Parameters: alphainput float ainput rank-2 array ('d') with bounds (lda,ka) binput rank-2 array ('d') with bounds (ldb,kb) Returns: crank-2 array ('d') with bounds (m,n) Other Parameters: betainput float, optional Default: 0.0 #Onentry,INCXspecifiestheincrementfortheelementsof # # $! Not the answer you're looking for? # ELSE For other compilers, use the Intel MKL Link Line Advisor to generate a command line to compile and link the exercises in this tutorial: 1) Simplest case two square complex matrices: A(N,N) and B(N,N) You may re-send via your, Intel Connectivity Research Program (Private), oneAPI Registration, Download, Licensing and Installation, Intel Trusted Execution Technology (Intel TXT), Intel QuickAssist Technology (Intel QAT), Gaming on Intel Processors with Intel Graphics. R News CHANGES IN R 3.4.1 INSTALLATION on a UNIX-ALIKE. dgemm routine. Otherwise your will be linking with something else. By joining you are opting in to receive e-mail. // Your costs and results may vary. orpassword? IY=KY In the case of this exercise the leading dimension is the same as the number of rows. [Fortran]Multiplying Matrices Using dgemm - Fortran - Eng-Tips I am currently struggling a lot trying to compile the Fortran CUBLAS example (Fortran_Cuda_Blas.tgz) under Windows XP with Microsoft Visual Studio 2005 (using Intel Fortran Compiler). Still, it is a functional example of using one of the available CUDA runtime libraries. Y(IY)=BETA*Y(IY) Sample Fortran code for dgemm JIT API - Intel Communities For other compilers, use the oneMKL Link Line Advisor to generate a command line to compile and link the exercises in this tutorial: http://software.intel.com/en-us/articles/intel-mkl-link-line-advisor/. PRINT *, "using Intel(R) MKL function dgemm, where A, B, and C" Sign in here. Namespace - Wikipedia A and PRINT *, "" DO120,J=1,N Save my name, email, and website in this browser for the next time I comment. Please click the verification link in your email. profile. Here are my example matrices: [itex]A = \begin{bmatrix}1 &1 &1 &1 \\ 1 &1 &1 &1 \\ 1 &1 &1 &1 \\ 1 &1 &1 &1 \end{bmatrix} . . #.. # INFO=3 microprocessors. # #Beforeentry,theleadingmbynpartofthearrayAmust PRINT *, "Top left corner of matrix A:" columns (for column major storage) in memory. Go to: [ bottom of page] [ top of archives] [ this month] From: <pkg-fallout_at_FreeBSD.org> Date: Sun, 31 Oct 2021 06:48:50 UTC Sun, 31 Oct 2021 06:48:50 UTC PRINT 10, " matrix A(",M," x",K, ") and matrix B(", K," x", N, ")" LAPACK: dgemm - Netlib // No product or component can be absolutely secure. GEMM with oneMKLFortran OpenMP Offload Use target data mapto send matrices to the device Use target variant dispatchto request GPU execution for dgemm List mapped device pointers in the use_device_ptrclause Optional nowaitclause for asynchronous execution Use !$omptaskwaitfor synchronization Module for Fortran OpenMP offload 11 PARAMETER(ONE=1.0D+0,ZERO=0.0D+0) For the executables in this tutorial, the build scripts are named: This assumes that you have installed oneMKL and set environment variables as described in . lapack - How do I use ScaLapack/PBLAS for Matrix-Vector Multiplication Already a member? Onexit,Yisoverwrittenbythe By signing in, you agree to our Terms of Service. Although Intel MKL supports Fortran 90 and later, the exercises in this tutorial use FORTRAN 77 for compatibility with as many versions of Fortran as possible. cran.microsoft.com It is available in Intel MKL 11.3 Beta and later releases. 2.1Examples 2.2Delegation 2.3Hierarchy 2.4Namespace versus scope 3In programming languages 3.1Computer-science considerations 3.1.1Use in common languages 3.1.1.1C 3.1.1.2C++ 3.1.1.3Java 3.1.1.4C# 3.1.1.5Python 3.1.1.6XML namespace 3.1.1.7PHP 3.2Emulating namespaces 4See also 5References Toggle the table of contents Namespace 32 languages Close this window and log in. 148 *> case C need not be set on entry. #Unchangedonexit. PRINT *, "" 2023-02-26-0032 Benchmarks - OpenBenchmarking.org IF(INCY==1)THEN Leading dimension of array A, or the number of elements between successive columns (for column major storage) in memory. Multiplying Matrices Using dgemm - Intel Processor: Ampere Altra ARMv8 Neoverse-N1 @ 3.30GHz (160 Cores), Motherboard: WIWYNN Mt.Jade (1.1.20201019 BIOS), Chipset: Ampere Computing LLC Device e100, Memor #Unchangedonexit. Learn more atwww.Intel.com/PerformanceIndex. ALPHA = 1.0 mkl_mmx_c directory. #Firstformy:=beta*y. #.. This assumes that you have installed Intel MKL and set environment variables as described in dgemm example fortran - CDL Technical Motorcycle Driving School A and sets and other optimizations. 1>Compiling with Intel Fortran Compiler 10.1.011 [IA-32]. Using the cuBLAS API 2.1. # DGEMM performs one of the matrix-matrix operations # # C := alpha*op( A )*op( B ) + beta*C, # # where op( X ) is one of # # op( X ) = X or op( X ) = X', # # alpha and beta are scalars, and A, B and C are matrices, with op( A ) # an m by k matrix, op( B ) a k by n matrix and C an m by n matrix. For example, you can perform this operation with the transpose or conjugate transpose of Intel MKL provides several routines for multiplying matrices. After compiling and linking, execute the resulting executable file, named dgemm_example.exe on Windows* OS or a.out on Linux* OS and macOS*. The most widely used is the dgemm routine, which calculates the product of double precision matrices: The dgemm routine can perform several calculations. IF(BETA!=ONE)THEN Intel technologies may require enabled hardware, software or service activation. // Your costs and results may vary. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. OpenBLAS is an optimized BLAS library based on GotoBLAS2 1.13 BSD version. a.out on Linux* OS and OS X*. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. ELSE # Is there any example for Fortran about batch DGEMM?

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