/[MITgcm]/MITgcm/eesupp/inc/CPP_EEOPTIONS.h
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revision 1.7 by adcroft, Wed Jul 15 22:05:44 1998 UTC revision 1.18 by cnh, Fri Sep 21 03:54:35 2001 UTC
# Line 1  Line 1 
1  C $Header$  C $Header$
2    C $Name$
3    
4      These lines are here to deliberately cause a compile-time error.
5      If you see these lines in your .F files or the compiler shows them
6      as an error then it means you have not placed your configuration
7      files in the appropriate place.
8      You need to place you own copy of CPP_EEOPTIONS.h in the include
9      path for the model.
10    
11    CBOP
12    C     !ROUTINE: CPP_EEOPTIONS.h
13    C     !INTERFACE:
14    C     include "CPP_EEOPTIONS.h"
15  C  C
16  C     /==========================================================\  C     !DESCRIPTION:
17    C     *==========================================================*
18  C     | CPP_EEOPTIONS.h                                          |  C     | CPP_EEOPTIONS.h                                          |
19  C     |==========================================================|  C     *==========================================================*
20  C     | C preprocessor "execution environment" supporting        |  C     | C preprocessor "execution environment" supporting        |
21  C     | flags. Use this file to set flags controlling the        |  C     | flags. Use this file to set flags controlling the        |
22  C     | execution environment in which a model runs - as opposed |  C     | execution environment in which a model runs - as opposed |
# Line 21  C     |       set all options as selecta Line 35  C     |       set all options as selecta
35  C     |       once an experimental configuration has been        |  C     |       once an experimental configuration has been        |
36  C     |       identified, rebuild the code with the appropriate  |  C     |       identified, rebuild the code with the appropriate  |
37  C     |       options set at compile time.                       |  C     |       options set at compile time.                       |
38  C     \==========================================================/  C     *==========================================================*
39    CEOP
40    
41  #ifndef _CPP_EEOPTIONS_H_  #ifndef _CPP_EEOPTIONS_H_
42  #define _CPP_EEOPTIONS_H_  #define _CPP_EEOPTIONS_H_
# Line 44  C     safe, on Sun it is not possible - Line 59  C     safe, on Sun it is not possible -
59  C     undef this option.  C     undef this option.
60  #undef  FMTFTN_IO_THREADSAFE  #undef  FMTFTN_IO_THREADSAFE
61    
 C     Flag used to indicate which flavour of multi-threading  
 C     compiler directives to use. Only set one of these.  
 C     USE_SOLARIS_THREADING  - Takes directives for SUN Workshop  
 C                              compiler.  
 C     USE_KAP_THREADING      - Takes directives for Kuck and  
 C                              Associates multi-threading compiler  
 C                              ( used on Digital platforms ).  
 C     USE_IRIX_THREADING     - Takes directives for SGI MIPS  
 C                              Pro Fortran compiler.  
 C     USE_EXEMPLAR_THREADING - Takes directives for HP SPP series  
 C                              compiler.  
 C     USE_C90_THREADING      - Takes directives for CRAY/SGI C90  
 C                              system F90 compiler.  
 #ifdef TARGET_SUN  
 #define USE_SOLARIS_THREADING  
 #endif  
   
 #ifdef TARGET_DEC  
 #undef  USE_KAP_THREADING  
 #endif  
   
 #ifdef TARGET_SGI  
 #define USE_IRIX_THREADING  
 #endif  
   
 #ifdef TARGET_HP  
 #define USE_EXEMPLAR_THREADING  
 #endif  
   
 #ifdef TARGET_CRAY_VECTOR  
 #define USE_C90_THREADING  
 #endif  
   
 C--   Define the mapping for the _BARRIER macro  
 C     On some systems low-level hardware support can be accessed through  
 C     compiler directives here.  
 #define _BARRIER CALL BARRIER(myThid)  
   
 C--   Define the mapping for the BEGIN_CRIT() and  END_CRIT() macros.  
 C     On some systems we simply execute this section only using the  
 C     master thread i.e. its not really a critical section. We can  
 C     do this because we don't use critical sections in any critical  
 C     sections of our code!  
 #define _BEGIN_CRIT(a) _BEGIN_MASTER(a)  
 #define _END_CRIT(a)   _END_MASTER(a)  
   
 C--   Define the mapping for the BEGIN_MASTER_SECTION() and  
 C     END_MASTER_SECTION() macros. These are generally implemented by  
 C     simply choosing a particular thread to be "the master" and have  
 C     it alone execute the BEGIN_MASTER..., END_MASTER.. sections.  
 #define _BEGIN_MASTER(a)  IF ( a .EQ. 1 ) THEN  
 #define _END_MASTER(a)    ENDIF  
   
62  C--   Control MPI based parallel processing  C--   Control MPI based parallel processing
63  #define ALLOW_USE_MPI  #undef  ALLOW_USE_MPI
64  #define ALWAYS_USE_MPI  #undef  ALWAYS_USE_MPI
65    
66  C--   Control use of communication that might overlap computation.  C--   Control use of communication that might overlap computation.
67  C     Under MPI selects/deselects "non-blocking" sends and receives.  C     Under MPI selects/deselects "non-blocking" sends and receives.
# Line 111  C     Under MPI selects/deselects "block Line 73  C     Under MPI selects/deselects "block
73  #define ALLOW_SYNC_COMMUNICATION  #define ALLOW_SYNC_COMMUNICATION
74  #undef  ALWAYS_USE_SYNC_COMMUNICATION  #undef  ALWAYS_USE_SYNC_COMMUNICATION
75    
76    C--   Control use of JAM routines for Artic network
77    C     These invoke optimized versions of "exchange" and "sum" that
78    C     utilize the programmable aspect of Artic cards.
79    #undef  LETS_MAKE_JAM
80    #undef  JAM_WITH_TWO_PROCS_PER_NODE
81    
82  C--   Control storage of floating point operands  C--   Control storage of floating point operands
83  C     On many systems it improves performance only to use  C     On many systems it improves performance only to use
84  C     8-byte precision for time stepped variables.  C     8-byte precision for time stepped variables.
# Line 119  C     can use 4-byte precision, reducing Line 87  C     can use 4-byte precision, reducing
87  C     boosting performance because of a smaller working  C     boosting performance because of a smaller working
88  C     set size. However, on vector CRAY systems this degrades  C     set size. However, on vector CRAY systems this degrades
89  C     performance.  C     performance.
90  #undef  REAL4_IS_SLOW  #define REAL4_IS_SLOW
   
 #ifdef REAL4_IS_SLOW  
 #define real Real*8  
 #define REAL Real*8  
 #define _RS  Real*8  
 #define _RL  Real*8  
 #define _EXCH_XY_R4(a,b)       CALL EXCH_XY_R8 ( a, b )  
 #define _EXCH_XYZ_R4(a,b)      CALL EXCH_XYZ_R8 ( a, b )  
 #define _GLOBAL_SUM_R4(a,b,c)  CALL GLOBAL_SUM_R8( a, b , c)  
 #define _GLOBAL_MAX_R4(a,b,c)  CALL GLOBAL_MAX_R8( a, b , c)  
 #endif  
   
 #ifndef REAL4_IS_SLOW  
 #define real Real*4  
 #define REAL Real*8  
 #define _RS  Real*4  
 #define _RL  Real*8  
 #define _EXCH_XY_R4(a,b)       CALL EXCH_XY_R4 ( a, b )  
 #define _EXCH_XYZ_R4(a,b)      CALL EXCH_XYZ_R4 ( a, b )  
 #define _GLOBAL_SUM_R4(a,b,c)  CALL GLOBAL_SUM_R4( a, b , c)  
 #define _GLOBAL_MAX_R4(a,b,c)  CALL GLOBAL_MAX_R4( a, b , c)  
 #endif  
   
 #define _EXCH_XY_R8(a,b)       CALL EXCH_XY_R8 ( a, b )  
 #define _EXCH_XYZ_R8(a,b)      CALL EXCH_XYZ_R8 ( a, b )  
 #define _GLOBAL_SUM_R8(a,b,c)  CALL GLOBAL_SUM_R8( a, b , c)  
 #define _GLOBAL_MAX_R8(a,b,c)  CALL GLOBAL_MAX_R8( a, b , c)  
91    
92  C--   Control use of "double" precision constants.  C--   Control use of "double" precision constants.
93  C     Use D0 where it means REAL*8 but not where it means REAL*16  C     Use D0 where it means REAL*8 but not where it means REAL*16
94  #define D0 d0  #define D0 d0
 #ifdef REAL_D0_IS_16BYTES  
 #define D0  
 #endif  
95    
96  C--   Control XY periodicity in processor to grid mappings  C--   Control XY periodicity in processor to grid mappings
97  C     Note: Model code does not need to know whether a domain is  C     Note: Model code does not need to know whether a domain is
98  C           periodic because it has overlap regions for every box.  C           periodic because it has overlap regions for every box.
99  C           Model's simply assume that these values have been  C           Model assume that these values have been
100  C           filled in some way.  C           filled in some way.
101  #undef  ALWAYS_PREVENT_X_PERIODICITY  #undef  ALWAYS_PREVENT_X_PERIODICITY
102  #undef  ALWAYS_PREVENT_Y_PERIODICITY  #undef  ALWAYS_PREVENT_Y_PERIODICITY
103  #define CAN_PREVENT_X_PERIODICITY  #define CAN_PREVENT_X_PERIODICITY
104  #define CAN_PREVENT_Y_PERIODICITY  #define CAN_PREVENT_Y_PERIODICITY
105    
 C--   Substitue for 1.D variables  
 C     Sun compilers don't use 8-byte precision for literals  
 C     unless .Dnn is specified. CRAY vector machines use 16-byte  
 C     precision when they see .Dnn which runs very slowly!  
 #ifdef REAL_D0_IS_16BYTES  
 #define _d  
 #endif  
 #ifndef REAL_D0_IS_16BYTES  
 #define _d D  
 #endif  
   
106  #endif /* _CPP_EEOPTIONS_H_ */  #endif /* _CPP_EEOPTIONS_H_ */
107    
108    #include "CPP_EEMACROS.h"

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