reference/sdsdotf.f · 三字经/OpenBLAS

代码拉取完成,页面将自动刷新

richgiteeai

Watch

不关注关注所有动态仅关注版本发行动态关注但不提醒动态

1 Star 0 Fork 0

三字经/OpenBLAS

代码 Issues 0 Pull Requests 0 Wiki 统计流水线

服务

加入 Gitee

与超过 1400万开发者一起发现、参与优秀开源项目,私有仓库也完全免费 :)

免费加入

已有帐号? 立即登录

文件

develop

分支 (57)

标签 (69)

管理

develop

gh-pages

release-0.3.0

issue5267

revert-5565-jn/makefile-rule-dynamic

revert-5643-neov2_param

revert-5479-forklock

revert-4741-Pthread_Scalability_Improvement

gemm_batch

revert-5180-openmp_use_cmake

revert-5251-issue5250

timeout-riscv-ci

revert-4920-issue4917

revert-4628-CI-c910v-mips64-loongarch64

risc-v

revert-4153-dgemv

jenkins

revert-4103-windows_perf

utest-riscv

revert-3518-elbrus

v0.3.33

v0.3.32

v0.3.31

v0.3.30

v0.3.29

v0.3.28

v0.3.27

v0.3.26

v0.3.25

v0.3.24

v0.3.23

v0.3.22

v0.3.21

v0.3.20

v0.3.19

v0.3.18

v0.3.17

v0.3.16

v0.3.15

v0.3.14

克隆/下载

HTTPS SSH SVN SVN+SSH 下载ZIP

提示

下载代码请复制以下命令到终端执行

为确保你提交的代码身份被 Gitee 正确识别,请执行以下命令完成配置

git config --global user.name userName 
git config --global user.email userEmail

初次使用 SSH 协议进行代码克隆、推送等操作时,需按下述提示完成 SSH 配置

1 生成 RSA 密钥

2 获取 RSA 公钥内容,并配置到 SSH公钥中

在 Gitee 上使用 SVN,请访问使用指南

使用 HTTPS 协议时,命令行会出现如下账号密码验证步骤。基于安全考虑,Gitee 建议配置并使用私人令牌替代登录密码进行克隆、推送等操作

Username for 'https://gitee.com': userName

Password for 'https://userName@gitee.com': # 私人令牌

分支 57

标签 69

OpenBLAS

reference

sdsdotf.f

sdsdotf.f 2.64 KB

*DECK SDSDOTF
 REAL FUNCTION SDSDOTF (N, SB, SX, INCX, SY, INCY)
C***BEGIN PROLOGUE SDSDOT
C***PURPOSE Compute the inner product of two vectors with extended
C precision accumulation.
C***LIBRARY SLATEC (BLAS)
C***CATEGORY D1A4
C***TYPE SINGLE PRECISION (SDSDOT-S, CDCDOT-C)
C***KEYWORDS BLAS, DOT PRODUCT, INNER PRODUCT, LINEAR ALGEBRA, VECTOR
C***AUTHOR Lawson, C. L., (JPL)
C Hanson, R. J., (SNLA)
C Kincaid, D. R., (U. of Texas)
C Krogh, F. T., (JPL)
C***DESCRIPTION
C
C B L A S Subprogram
C Description of Parameters
C
C --Input--
C N number of elements in input vector(s)
C SB single precision scalar to be added to inner product
C SX single precision vector with N elements
C INCX storage spacing between elements of SX
C SY single precision vector with N elements
C INCY storage spacing between elements of SY
C
C --Output--
C SDSDOT single precision dot product (SB if N .LE. 0)
C
C Returns S.P. result with dot product accumulated in D.P.
C SDSDOT = SB + sum for I = 0 to N-1 of SX(LX+I*INCX)*SY(LY+I*INCY),
C where LX = 1 if INCX .GE. 0, else LX = 1+(1-N)*INCX, and LY is
C defined in a similar way using INCY.
C
C***REFERENCES C. L. Lawson, R. J. Hanson, D. R. Kincaid and F. T.
C Krogh, Basic linear algebra subprograms for Fortran
C usage, Algorithm No. 539, Transactions on Mathematical
C Software 5, 3 (September 1979), pp. 308-323.
C***ROUTINES CALLED (NONE)
C***REVISION HISTORY (YYMMDD)
C 791001 DATE WRITTEN
C 890531 Changed all specific intrinsics to generic. (WRB)
C 890831 Modified array declarations. (WRB)
C 890831 REVISION DATE from Version 3.2
C 891214 Prologue converted to Version 4.0 format. (BAB)
C 920310 Corrected definition of LX in DESCRIPTION. (WRB)
C 920501 Reformatted the REFERENCES section. (WRB)
C***END PROLOGUE SDSDOT
 REAL SX(*), SY(*), SB
 DOUBLE PRECISION DSDOT
C***FIRST EXECUTABLE STATEMENT SDSDOT
 DSDOT = SB
 IF (N .LE. 0) GO TO 30
 IF (INCX.EQ.INCY .AND. INCX.GT.0) GO TO 40
C
C Code for unequal or nonpositive increments.
C
 KX = 1
 KY = 1
 IF (INCX .LT. 0) KX = 1+(1-N)*INCX
 IF (INCY .LT. 0) KY = 1+(1-N)*INCY
 DO 10 I = 1,N
 DSDOT = DSDOT + DBLE(SX(KX))*DBLE(SY(KY))
 KX = KX + INCX
 KY = KY + INCY
 10 CONTINUE
 30 SDSDOTF = DSDOT
 RETURN
C
C Code for equal and positive increments.
C
 40 NS = N*INCX
 DO 50 I = 1,NS,INCX
 DSDOT = DSDOT + DBLE(SX(I))*DBLE(SY(I))
 50 CONTINUE
 SDSDOTF = DSDOT
 RETURN
 END

一键复制编辑原始数据按行查看历史

Zhang Xianyi 提交于 2011年01月24日 22:54 +08:00 . Import GotoBLAS2 1.13 BSD version codes.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78

*DECKSDSDOTF
REALFUNCTIONSDSDOTF(N,SB,SX,INCX,SY,INCY)
C***BEGINPROLOGUESDSDOT
C***PURPOSEComputetheinnerproductoftwovectorswithextended
Cprecisionaccumulation.
C***LIBRARYSLATEC(BLAS)
C***CATEGORYD1A4
C***TYPESINGLEPRECISION(SDSDOT-S,CDCDOT-C)
C***KEYWORDSBLAS,DOTPRODUCT,INNERPRODUCT,LINEARALGEBRA,VECTOR
C***AUTHORLawson,C.L.,(JPL)
CHanson,R.J.,(SNLA)
CKincaid,D.R.,(U.ofTexas)
CKrogh,F.T.,(JPL)
C***DESCRIPTION
C
CBLASSubprogram
CDescriptionofParameters
C
C--Input--
CNnumberofelementsininputvector(s)
CSBsingleprecisionscalartobeaddedtoinnerproduct
CSXsingleprecisionvectorwithNelements
CINCXstoragespacingbetweenelementsofSX
CSYsingleprecisionvectorwithNelements
CINCYstoragespacingbetweenelementsofSY
C
C--Output--
CSDSDOTsingleprecisiondotproduct(SBifN.LE.0)
C
CReturnsS.P.resultwithdotproductaccumulatedinD.P.
CSDSDOT=SB+sumforI=0toN-1ofSX(LX+I*INCX)*SY(LY+I*INCY),
CwhereLX=1ifINCX.GE.0,elseLX=1+(1-N)*INCX,andLYis
CdefinedinasimilarwayusingINCY.
C
C***REFERENCESC.L.Lawson,R.J.Hanson,D.R.KincaidandF.T.
CKrogh,BasiclinearalgebrasubprogramsforFortran
Cusage,AlgorithmNo.539,TransactionsonMathematical
CSoftware5,3(September1979),pp.308-323.
C***ROUTINESCALLED(NONE)
C***REVISIONHISTORY(YYMMDD)
C791001DATEWRITTEN
C890531Changedallspecificintrinsicstogeneric.(WRB)
C890831Modifiedarraydeclarations.(WRB)
C890831REVISIONDATEfromVersion3.2
C891214PrologueconvertedtoVersion4.0format.(BAB)
C920310CorrecteddefinitionofLXinDESCRIPTION.(WRB)
C920501ReformattedtheREFERENCESsection.(WRB)
C***ENDPROLOGUESDSDOT
REALSX(*),SY(*),SB
DOUBLE PRECISIONDSDOT
C***FIRSTEXECUTABLESTATEMENTSDSDOT
DSDOT=SB
IF(N.LE.0)GO TO30
IF(INCX.EQ.INCY.AND.INCX.GT.0)GO TO40
C
CCodeforunequalornonpositiveincrements.
C
KX=1
KY=1
IF(INCX.LT.0)KX=1+(1-N)*INCX
IF(INCY.LT.0)KY=1+(1-N)*INCY
DO10I=1,N
DSDOT=DSDOT+DBLE(SX(KX))*DBLE(SY(KY))
KX=KX+INCX
KY=KY+INCY
10CONTINUE
30SDSDOTF=DSDOT
RETURN
C
CCodeforequalandpositiveincrements.
C
40NS=N*INCX
DO50I=1,NS,INCX
DSDOT=DSDOT+DBLE(SX(I))*DBLE(SY(I))
50CONTINUE
SDSDOTF=DSDOT
RETURN
END