Updated variants information as well as fixed trailing line in zlarft

Author: jprhyne

SRC/VARIANTS/Makefile

@@ -30,9 +30,11 @@ LUREC = lu/REC/cgetrf.o lu/REC/dgetrf.o lu/REC/sgetrf.o lu/REC/zgetrf.o
 
 QRLL = qr/LL/cgeqrf.o qr/LL/dgeqrf.o qr/LL/sgeqrf.o qr/LL/zgeqrf.o
 
+LARFTL2 = larft/LL-LVL2/clarft.o larft/LL-LVL2/dlarft.o larft/LL-LVL2/slarft.o larft/LL-LVL2/zlarft.o
+
 
 .PHONY: all
-all: cholrl.a choltop.a lucr.a lull.a lurec.a qrll.a
+all: cholrl.a choltop.a lucr.a lull.a lurec.a qrll.a larftl2.a
 
 cholrl.a: $(CHOLRL)
 	$(AR) $(ARFLAGS) $@ $^
@@ -58,9 +60,13 @@ qrll.a: $(QRLL)
 	$(AR) $(ARFLAGS) $@ $^
 	$(RANLIB) $@
 
+larftl2.a: $(LARFTL2)
+	$(AR) $(ARFLAGS) $@ $^
+	$(RANLIB) $@
+
 .PHONY: clean cleanobj cleanlib
 clean: cleanobj cleanlib
 cleanobj:
-	rm -f $(CHOLRL) $(CHOLTOP) $(LUCR) $(LULL) $(LUREC) $(QRLL)
+	rm -f $(CHOLRL) $(CHOLTOP) $(LUCR) $(LULL) $(LUREC) $(QRLL) $(LARFTL2)
 cleanlib:
 	rm -f *.a

SRC/VARIANTS/README

@@ -23,6 +23,7 @@ This directory contains several variants of LAPACK routines in single/double/com
 	- [sdcz]geqrf with QR Left Looking Level 3 BLAS version algorithm [2]- Directory: SRC/VARIANTS/qr/LL
 	- [sdcz]potrf with Cholesky Right Looking Level 3 BLAS version algorithm [2]- Directory: SRC/VARIANTS/cholesky/RL
 	- [sdcz]potrf with Cholesky Top Level 3 BLAS version algorithm [2]- Directory: SRC/VARIANTS/cholesky/TOP
+	- [sdcz]larft using a Left Looking Level 2 BLAS version algorithm - Directory: SRC/VARIANTS/larft/LL-LVL2
 
 References:For a more detailed description please refer to
 	- [1] Toledo, S. 1997. Locality of Reference in LU Decomposition with Partial Pivoting. SIAM J. Matrix Anal. Appl. 18, 4 (Oct. 1997),
@@ -44,6 +45,7 @@ Corresponding libraries created in SRC/VARIANTS:
 	- QR Left Looking : qrll.a
 	- Cholesky Right Looking : cholrl.a
 	- Cholesky Top : choltop.a
+	- LARFT Level 2: larftl2.a
 
 
 ===========

SRC/VARIANTS/larft/LL-LVL2/clarft.f

@@ -1,4 +1,4 @@
-*> \brief \b CLARFT forms the triangular factor T of a block reflector H = I - vtvH
+*> \brief \b CLARFT VARIANT: left-looking Level 2 BLAS version of the algorithm
 *
 *  =========== DOCUMENTATION ===========
 *

SRC/VARIANTS/larft/LL-LVL2/dlarft.f

@@ -1,4 +1,4 @@
-*> \brief \b DLARFT forms the triangular factor T of a block reflector H = I - vtvH
+*> \brief \b DLARFT VARIANT: left-looking Level 2 BLAS version of the algorithm
 *
 *  =========== DOCUMENTATION ===========
 *

SRC/VARIANTS/larft/LL-LVL2/slarft.f

@@ -1,4 +1,4 @@
-*> \brief \b SLARFT forms the triangular factor T of a block reflector H = I - vtvH
+*> \brief \b SLARFT VARIANT: left-looking Level 2 BLAS version of the algorithm.
 *
 *  =========== DOCUMENTATION ===========
 *

SRC/VARIANTS/larft/LL-LVL2/zlarft.f

@@ -1,4 +1,4 @@
-*> \brief \b ZLARFT forms the triangular factor T of a block reflector H = I - vtvH
+*> \brief \b ZLARFT VARIANT: left-looking Level 2 BLAS version of the algorithm.
 *
 *  =========== DOCUMENTATION ===========
 *

SRC/zlarft.f

@@ -159,8 +159,8 @@
 *> \endverbatim
 *>
 *  =====================================================================
-      RECURSIVE SUBROUTINE ZLARFT( DIRECT, STOREV, N, K, V, LDV, TAU, T,
-     $                             LDT )
+      RECURSIVE SUBROUTINE ZLARFT( DIRECT, STOREV, N, K, V, LDV,
+     $                             TAU, T, LDT )
 *
 *  -- LAPACK auxiliary routine --
 *  -- LAPACK is a software package provided by Univ. of Tennessee,    --