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
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
*
*
SUBROUTINE PZLASIZESEP( DESCA, IPREPAD, IPOSTPAD, SIZEMQRLEFT,
$ SIZEMQRRIGHT, SIZEQRF, SIZETMS, RSIZEQTQ,
$ RSIZECHK, SIZEHEEVX, RSIZEHEEVX,
$ ISIZEHEEVX, SIZESUBTST, RSIZESUBTST,
$ ISIZESUBTST, SIZETST, RSIZETST, ISIZETST )
*
* -- ScaLAPACK routine (version 1.5) --
* University of Tennessee, Knoxville, Oak Ridge National Laboratory,
* and University of California, Berkeley.
* May 1, 1997
*
* .. Scalar Arguments ..
INTEGER IPOSTPAD, IPREPAD, ISIZEHEEVX, ISIZESUBTST,
$ ISIZETST, RSIZECHK, RSIZEHEEVX, RSIZEQTQ,
$ RSIZESUBTST, RSIZETST, SIZEHEEVX, SIZEMQRLEFT,
$ SIZEMQRRIGHT, SIZEQRF, SIZESUBTST, SIZETMS,
$ SIZETST
* ..
* .. Array Arguments ..
INTEGER DESCA( * )
* ..
*
* Purpose
* =======
*
* PZLASIZESEP computes the amount of memory needed by
* various SEP test routines, as well as HEEVX itself
*
* Arguments
* =========
*
* DESCA (global input) INTEGER array dimension ( DLEN_ )
* Array descriptor as passed to PZHEEVX
*
* SIZEMQRLEFT LWORK for the 1st PZUNMQR call in PZLAGHE
*
* SIZEMQRRIGHT LWORK for the 2nd PZUNMQR call in PZLAGHE
*
* SIZEQRF LWORK for PZGEQRF in PZLAGHE
*
* SIZETMS LWORK for PZLATMS
*
* rSIZEQTQ LWORK for PZSEPQTQ (nexer complex)
*
* rSIZECHK LWORK for PZSEPCHK
*
* SIZEHEEVX LWORK for PZHEEVX
*
* RSIZEHEEVX LRWORK for PZHEEVX
*
* ISIZEHEEVX LIWORK for PZHEEVX
*
* SIZESUBTST LWORK for PZSUBTST
*
* RSIZESUBTST LRWORK for PZSUBTST
*
* ISIZESUBTST LIWORK for PZSUBTST
*
* SIZETST LWORK for PZTST
*
* RSIZETST LRWORK for PZTST
*
* ISIZETST LIWORK for PZTST
*
* .. Parameters ..
INTEGER BLOCK_CYCLIC_2D, DLEN_, DTYPE_, CTXT_, M_, N_,
$ MB_, NB_, RSRC_, CSRC_, LLD_
PARAMETER ( BLOCK_CYCLIC_2D = 1, DLEN_ = 9, DTYPE_ = 1,
$ CTXT_ = 2, M_ = 3, N_ = 4, MB_ = 5, NB_ = 6,
$ RSRC_ = 7, CSRC_ = 8, LLD_ = 9 )
* ..
* .. Local Scalars ..
INTEGER CSRC_A, IACOL, IAROW, ICOFFA, IROFFA, LCM,
$ LCMQ, LDA, MQ0, MYCOL, MYROW, N, NB, NEIG, NN,
$ NNP, NP, NP0, NPCOL, NPROW, NQ, RSRC_A,
$ SIZECHK, SIZEQTQ
* ..
* .. External Functions ..
INTEGER ICEIL, ILCM, INDXG2P, NUMROC
EXTERNAL ICEIL, ILCM, INDXG2P, NUMROC
* ..
** .. Executable Statements ..
* This is just to keep ftnchek happy
* .. External Subroutines ..
EXTERNAL BLACS_GRIDINFO
* ..
* .. Intrinsic Functions ..
INTRINSIC MAX
* ..
* .. Executable Statements ..
IF( BLOCK_CYCLIC_2D*CSRC_*CTXT_*DLEN_*DTYPE_*LLD_*MB_*M_*NB_*N_*
$ RSRC_.LT.0 )RETURN
*
N = DESCA( M_ )
NB = DESCA( MB_ )
RSRC_A = DESCA( RSRC_ )
CSRC_A = DESCA( CSRC_ )
*
LDA = DESCA( LLD_ )
CALL BLACS_GRIDINFO( DESCA( CTXT_ ), NPROW, NPCOL, MYROW, MYCOL )
*
LCM = ILCM( NPROW, NPCOL )
LCMQ = LCM / NPCOL
IROFFA = 0
ICOFFA = 0
IAROW = INDXG2P( 1, NB, MYROW, RSRC_A, NPROW )
IACOL = INDXG2P( 1, NB, MYCOL, CSRC_A, NPCOL )
NP = NUMROC( N+IROFFA, NB, MYROW, IAROW, NPROW )
NQ = NUMROC( N+ICOFFA, NB, MYCOL, IACOL, NPCOL )
SIZEMQRLEFT = MAX( ( NB*( NB-1 ) ) / 2, ( NP+NQ )*NB ) + NB*NB
SIZEMQRRIGHT = MAX( ( NB*( NB-1 ) ) / 2,
$ ( NQ+MAX( NP+NUMROC( NUMROC( N+ICOFFA, NB, 0, 0,
$ NPCOL ), NB, 0, 0, LCMQ ), NP ) )*NB ) + NB*NB
SIZEQRF = NB*NP + NB*NQ + NB*NB
SIZETMS = ( LDA+1 )*MAX( 1, NQ ) +
$ MAX( SIZEMQRLEFT, SIZEMQRRIGHT, SIZEQRF )
*
NP0 = NUMROC( N, DESCA( MB_ ), 0, 0, NPROW )
MQ0 = NUMROC( N, DESCA( NB_ ), 0, 0, NPCOL )
SIZEQTQ = 0
SIZECHK = 0
RSIZEQTQ = 2 + MAX( DESCA( MB_ ), 2 )*( 2*NP0+MQ0 )
RSIZECHK = NUMROC( N, DESCA( NB_ ), MYCOL, 0, NPCOL )
*
NEIG = N
NN = MAX( N, NB, 2 )
NP0 = NUMROC( NN, NB, 0, 0, NPROW )
MQ0 = NUMROC( MAX( NEIG, NB, 2 ), NB, 0, 0, NPCOL )
SIZEHEEVX = N + ( NP0+MQ0+NB )*NB
RSIZEHEEVX = 4*N + MAX( 5*NN, NP0*MQ0 ) +
$ ICEIL( NEIG, NPROW*NPCOL )*NN
NNP = MAX( N, NPROW*NPCOL+1, 4 )
ISIZEHEEVX = 6*NNP
*
SIZESUBTST = MAX( SIZETMS, SIZEQTQ, SIZECHK, SIZEHEEVX ) +
$ IPREPAD + IPOSTPAD
RSIZESUBTST = MAX( RSIZEHEEVX, RSIZEQTQ, RSIZECHK ) + IPREPAD +
$ IPOSTPAD
ISIZESUBTST = ISIZEHEEVX + IPREPAD + IPOSTPAD
*
*
* Allow room for A, COPYA and Z and WORK
*
SIZETST = 3*( LDA*NP+IPREPAD+IPOSTPAD ) + SIZESUBTST
*
* Room for DIAG, WIN, WNEW, GAP and RWORK
*
RSIZETST = 4*( N+IPREPAD+IPOSTPAD ) + RSIZESUBTST
*
* Allow room for IFAIL, ICLUSTR, and IWORK (all in PZHEEVX)
*
ISIZETST = N + 2*NPROW*NPCOL + 2*( IPREPAD+IPOSTPAD ) +
$ ISIZESUBTST
*
RETURN
END
|
