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CONSTANTS(5) |
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CONSTANTS − constants for LAM Fortran programming
The following table describes the values appropriate to various constants used in LAM. It also describes the meaning of the constants and lists the cpp(1) header files in which the constants can be found. To use these files, the Fortran source files will need to be passed through cpp(1) before they are given to the Fortran compiler. Some compiler drivers will run cpp(1) if the source file suffix is .F.
In lieu of cpp(1), the constants can be copied to parameter statements in the Fortran source files.
|
CONSTANT |
VALUE |
DESCRIPTION |
FILE |
Network Constants:
|
LOCAL |
-2147483647 |
local node |
NET.h | ||
|
MAXNMSGLEN |
8192 |
maximum length of one message packet |
NET.h | ||
|
NHDSIZE |
8 |
maximum size in words of ndata |
NET.h | ||
|
argument |
|||||
|
NOTNODEID |
-2147483648 |
error occurred in IGNDID(2) |
NET.h | ||
|
NOTNODETYPE |
-2147483648 |
error occurred in IGRTP(2) |
NET.h |
Node Types:
|
NTCAST |
2 |
multicast definition |
NET.h | ||
|
NTWASTE |
4 |
not fully used/wasted |
NET.h | ||
|
NTDISK |
8 |
node with attached disk |
NET.h | ||
|
NTTUBE |
16 |
node with attached video unit |
NET.h | ||
|
NTJONES |
32 |
node is a neighbour |
NET.h | ||
|
NTBOOT |
64 |
neighbour node to boot |
NET.h | ||
|
NTALL |
127 |
matches any type |
NET.h |
Message Flags:
|
NOBUF |
16 |
turn off buffering |
NET.h | ||
|
NREEL |
1024 |
multireel |
NET.h | ||
|
DRAWDATA |
65536 |
ndata representation will not be |
NET.h | ||
|
changed |
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|
DINT4DATA |
131072 |
ndata holds 8 32-bit integer |
NET.h | ||
|
DFLT4DATA |
262144 |
ndata holds 8 single precision reals |
NET.h | ||
|
DFLT8DATA |
524288 |
ndata holds 4 double precision reals |
NET.h | ||
|
DRAWMSG |
1048576 |
nmsg representation will not be |
NET.h | ||
|
changed |
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|
DINT4MSG |
2097152 |
nmsg holds integers |
NET.h | ||
|
DFLT4MSG |
4194304 |
nmsg holds single precision reals |
NET.h | ||
|
DFLT8MSG |
8388608 |
nmsg holds double precision reals |
NET.h |
Reserved Cast Identifiers:
|
HOST2ALL |
-2147483646 |
multicast from origin to all nodes |
NET.h | ||
|
HOST2COMP |
-2147483642 |
multicast from origin to compute nodes |
NET.h |
File Flags:
|
O_RDONLY |
0 |
open for reading only |
FREQ.h | ||
|
O_WRONLY |
1 |
open for writing only |
FREQ.h | ||
|
O_RDWR |
2 |
open for reading and writing |
FREQ.h | ||
|
O_APPEND |
8 |
append on each write |
FREQ.h | ||
|
O_CREAT |
512 |
create file if it does not exist |
FREQ.h | ||
|
O_TRUNC |
1024 |
truncate length to 0 |
FREQ.h | ||
|
O_EXCL |
2048 |
error if create and file exists |
FREQ.h | ||
|
O_SYNC |
8192 |
update file data and file status |
FREQ.h | ||
|
before writing |
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|
O_LOCK |
65536 |
lock file descriptor active |
FREQ.h | ||
|
O_REUSE |
131072 |
reuse existing file descriptor |
FREQ.h | ||
|
O_1WAY |
4194304 |
do not acknowledge writes |
FREQ.h |
Process Runtime Flags:
|
RTF_WAIT |
16 |
child sends a message to |
NET.h | ||
|
parent when it exits |
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|
RTF_TRACE |
256 |
enable process tracing |
NET.h |
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CONSTANTS(5) | |