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C $Header: $ |
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C |
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C /==========================================================\ |
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C | EXCH.h | |
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C |==========================================================| |
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C | Support data structures for the MITgcm UV "exchange | |
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C | routines" code. This data should be private to the | |
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C | execution environment routines. |
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C \==========================================================/ |
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#ifndef _RL |
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#define _RL Real*8 |
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#endif |
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#ifndef _RS |
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#define _RS Real*4 |
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#endif |
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#ifndef _tileCommModeW |
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#define _tileCommModeW(a,b) tileCommModeW(a,b) |
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#endif |
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#ifndef _tileCommModeE |
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#define _tileCommModeE(a,b) tileCommModeE(a,b) |
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#endif |
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#ifndef _tileBiE |
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#define _tileBiE(a,b) tileBiE(a,b) |
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#endif |
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#ifndef _tileBiW |
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#define _tileBiW(a,b) tileBiW(a,b) |
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#endif |
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#ifndef _tileBjE |
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#define _tileBjE(a,b) tileBjE(a,b) |
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#endif |
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#ifndef _tileBjW |
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#define _tileBjW(a,b) tileBjW(a,b) |
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#endif |
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#ifndef _mpiPidW |
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#define _mpiPidW(a,b) pidW(a,b) |
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#endif |
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#ifndef _mpiIdE |
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#define _mpiIdE(a,b) pidE(a,b) |
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#endif |
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#ifndef _tileTagSendW |
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#define _tileTagSendW(a,b) tileTagSendW(a,b) |
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#endif |
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#ifndef _tileTagSendE |
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#define _tileTagSendE(a,b) tileTagSendE(a,b) |
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#endif |
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#ifndef _tileTagRecvW |
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#define _tileTagRecvW(a,b) tileTagRecvW(a,b) |
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#endif |
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#ifndef _tileTagRecvE |
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#define _tileTagRecvE(a,b) tileTagRecvE(a,b) |
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#endif |
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#ifndef _tileCommModeS |
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#define _tileCommModeS(a,b) tileCommModeS(a,b) |
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#endif |
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#ifndef _tileCommModeN |
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#define _tileCommModeN(a,b) tileCommModeN(a,b) |
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#endif |
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#ifndef _tileBiN |
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#define _tileBiN(a,b) tileBiN(a,b) |
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#endif |
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#ifndef _tileBiS |
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#define _tileBiS(a,b) tileBiS(a,b) |
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#endif |
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#ifndef _tileBjN |
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#define _tileBjN(a,b) tileBjN(a,b) |
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#endif |
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#ifndef _tileBjS |
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#define _tileBjS(a,b) tileBjS(a,b) |
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#endif |
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#ifndef _mpiPidS |
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#define _mpiPidS(a,b) pidS(a,b) |
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#endif |
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#ifndef _mpiIdN |
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#define _mpiIdN(a,b) pidN(a,b) |
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#endif |
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#ifndef _tileTagSendS |
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#define _tileTagSendS(a,b) tileTagSendS(a,b) |
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#endif |
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#ifndef _tileTagSendN |
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#define _tileTagSendN(a,b) tileTagSendN(a,b) |
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#endif |
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#ifndef _tileTagRecvS |
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#define _tileTagRecvS(a,b) tileTagRecvS(a,b) |
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#endif |
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#ifndef _tileTagRecvN |
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#define _tileTagRecvN(a,b) tileTagRecvN(a,b) |
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#endif |
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#ifndef _theSimulationMode |
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#define _theSimulationMode theSimulationMode |
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#endif |
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#ifndef _EXCH_SPIN_LIMIT |
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#define _EXCH_SPIN_LIMIT EXCH_SPIN_LIMIT |
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#endif |
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C MAX_OLX_EXCH - Maximum overlap region allowed in X |
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C MAX_OLY_EXCH - Maximum overlap region allowed in Y |
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C MAX_NR_EXCH - Maximum number of vertical levels allowed |
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C NUMBER_OF_BUFFER_LEVELS - Number of levels of buffer allowed. |
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C EXCH_SPIN_LIMIT - Error trapping threshold for deadlocked exchange |
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INTEGER MAX_OLX_EXCH |
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PARAMETER ( MAX_OLX_EXCH = MAX_OLX ) |
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INTEGER MAX_OLY_EXCH |
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PARAMETER ( MAX_OLY_EXCH = MAX_OLY ) |
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INTEGER MAX_NR_EXCH |
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PARAMETER ( MAX_NR_EXCH = nR + 1 ) |
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INTEGER NUMBER_OF_BUFFER_LEVELS |
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PARAMETER ( NUMBER_OF_BUFFER_LEVELS = 10 ) |
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INTEGER EXCH_SPIN_LIMIT |
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PARAMETER ( EXCH_SPIN_LIMIT = 100000000 ) |
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C |
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C L_BUFFER[XY] - Maximum size for exchange buffer in |
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C L_WBUFFER west, |
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C L_EBUFFER east, |
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C L_SBUFFER south, |
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C L_NBUFFER north. |
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INTEGER L_BUFFERX |
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PARAMETER ( L_BUFFERX = |
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& (sNy+2*MAX_OLY_EXCH)*MAX_OLX_EXCH*MAX_NR_EXCH ) |
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INTEGER L_BUFFERY |
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PARAMETER ( L_BUFFERY = |
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& (sNx+2*MAX_OLX_EXCH)*MAX_OLY_EXCH*MAX_NR_EXCH ) |
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INTEGER L_WBUFFER |
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INTEGER L_EBUFFER |
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INTEGER L_SBUFFER |
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INTEGER L_NBUFFER |
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PARAMETER ( L_WBUFFER = L_BUFFERX, |
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& L_EBUFFER = L_BUFFERX, |
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& L_SBUFFER = L_BUFFERY, |
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& L_NBUFFER = L_BUFFERY ) |
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C-- COMMON / EXCH_L / LOGICAL number common arrays for exchanges |
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C exchNeedsMemSync - TRUE if memory sync. required to ensure |
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C memory consistency during exchange |
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C exchUsesBarrier - TRUE if we use a call to BAR to do sync. |
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C between processes. On some machines we wont |
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C spin on the Ack setting ( the T90 ), |
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C instead we will use s system barrier. |
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C On the T90 the system barrier is very fast and |
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C switches out the thread while it waits. On most |
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C machines the system barrier is much too slow and if |
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C we own the machine and have one thread per process |
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C preemption is not a problem. |
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C exchCollectStatistics - Turns exchange statistics collecting on and off. |
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COMMON / EXCH_L / exchNeedsMemSync, exchUsesBarrier, |
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& exchCollectStatistics |
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LOGICAL exchNeedsMemSync |
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LOGICAL exchUsesBarrier |
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LOGICAL exchCollectStatistics |
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C-- COMMON / EXCH_R / REAL number common arrays for exchanges |
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C xxxxSendBuf - Buffer used for sending data to another tile. |
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C xxxxRecvBuf - Buffer used for receiving data from another tile. |
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COMMON / EXCH_R / |
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& westSendBuf_RL, eastSendBuf_RL, |
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& southSendBuf_RL, northSendBuf_RL, |
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& westRecvBuf_RL, eastRecvBuf_RL, |
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& southRecvBuf_RL, northRecvBuf_RL, |
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& westSendBuf_RS, eastSendBuf_RS, |
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& southSendBuf_RS, northSendBuf_RS, |
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& westRecvBuf_RS, eastRecvBuf_RS, |
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& southRecvBuf_RS, northRecvBuf_RS |
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_RL westSendBuf_RL( L_WBUFFER, NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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_RL eastSendBuf_RL( L_EBUFFER, NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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_RL southSendBuf_RL( L_SBUFFER, NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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_RL northSendBuf_RL( L_NBUFFER, NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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_RL westRecvBuf_RL( L_WBUFFER, NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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_RL eastRecvBuf_RL( L_EBUFFER, NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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_RL southRecvBuf_RL( L_SBUFFER, NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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_RL northRecvBuf_RL( L_NBUFFER, NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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_RS westSendBuf_RS( L_WBUFFER, NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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_RS eastSendBuf_RS( L_EBUFFER, NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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_RS southSendBuf_RS( L_SBUFFER, NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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_RS northSendBuf_RS( L_NBUFFER, NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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_RS westRecvBuf_RS( L_WBUFFER, NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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_RS eastRecvBuf_RS( L_EBUFFER, NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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_RS southRecvBuf_RS( L_SBUFFER, NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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_RS northRecvBuf_RS( L_NBUFFER, NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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C-- COMMON / EXCH_I / INTEGER common arrays for exchanges |
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C xxxxSendAck - Flag indicating ready to send data. |
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C xxxxRecvAck - Falg indicating receive data is ready. |
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C exchBufferLevel - Current cyclic buffer level. |
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C exchNReqsX, exchNReqsY - Pending message counts |
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C exchReqIdX, exchReqIdY -Pending message identifiers |
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C *Spin* - Exchange statistics holder |
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C Count - No. spins for each thread |
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C Max - Maximum spins for an exchange |
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C Min - Minimum spins for an exchange |
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COMMON / EXCH_I / |
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& westSendAck, eastSendAck, southSendAck, northSendAck, |
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& westRecvAck, eastRecvAck, southRecvAck, northRecvAck, |
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& exchangeBufLevel, |
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& exchNReqsX, exchNReqsY, exchReqIdX, exchReqIdY, |
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& exchRecvXSpinCount, exchRecvXSpinMax, exchRecvXSpinMin, |
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& exchRecvXExchCount, |
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& exchRecvYSpinCount, exchRecvYSpinMax, exchRecvYSpinMin, |
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& exchRecvYExchCount |
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INTEGER westSendAck( NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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INTEGER eastSendAck( NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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INTEGER southSendAck( NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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INTEGER northSendAck( NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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INTEGER westRecvAck( NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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INTEGER eastRecvAck( NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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INTEGER southRecvAck( NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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INTEGER northRecvAck( NUMBER_OF_BUFFER_LEVELS, |
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& nSx, nSy ) |
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INTEGER exchangeBufLevel( cacheLineSize/4, nSx, nSy ) |
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INTEGER exchNReqsX(cacheLineSize/4,nSx,nSy) |
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INTEGER exchNReqsY(cacheLineSize/4,nSx,nSy) |
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INTEGER exchReqIdX(2*nSx+2*nSy,cacheLineSize/4,nSx,nSy) |
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INTEGER exchReqIdY(2*nSx+2*nSy,cacheLineSize/4,nSx,nSy) |
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INTEGER exchRecvXSpinCount(cacheLineSize/4, nSx, nSy) |
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INTEGER exchRecvXExchCount(cacheLineSize/4, nSx, nSy) |
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INTEGER exchRecvXSpinMax (cacheLineSize/4, nSx, nSy) |
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INTEGER exchRecvXSpinMin (cacheLineSize/4, nSx, nSy) |
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INTEGER exchRecvYSpinCount(cacheLineSize/4, nSx, nSy) |
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INTEGER exchRecvYExchCount(cacheLineSize/4, nSx, nSy) |
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INTEGER exchRecvYSpinMax (cacheLineSize/4, nSx, nSy) |
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INTEGER exchRecvYSpinMin (cacheLineSize/4, nSx, nSy) |
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