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BUG: fileMonitor : parallel syncing

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This commit is contained in:
mattijs
2010-11-29 15:40:54 +00:00
parent 62bd94ca95
commit 5cccf15b18
4 changed files with 52 additions and 39 deletions
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70
src/OSspecific/POSIX/fileMonitor.C
View File

@ -319,7 +319,7 @@ void Foam::fileMonitor::checkFiles() const
if (ready < 0)
{
FatalErrorIn("fileMonitor::updateStates()")
FatalErrorIn("fileMonitor::checkFiles()")
<< "Problem in issuing select."
<< abort(FatalError);
}
@ -335,7 +335,7 @@ void Foam::fileMonitor::checkFiles() const
if (nBytes < 0)
{
FatalErrorIn("fileMonitor::updateStates(const fileName&)")
FatalErrorIn("fileMonitor::checkFiles()")
<< "read of " << watcher_->inotifyFd_
<< " failed with " << label(nBytes)
<< abort(FatalError);
@ -374,7 +374,7 @@ void Foam::fileMonitor::checkFiles() const
)
{
// Correct directory and name
state_[i] = MODIFIED;
localState_[i] = MODIFIED;
}
}
}
@ -403,18 +403,17 @@ void Foam::fileMonitor::checkFiles() const
if (newTime == 0)
{
state_[watchFd] = DELETED;
localState_[watchFd] = DELETED;
}
else
{
if (newTime > (oldTime + regIOobject::fileModificationSkew))
{
watcher_->lastMod_[watchFd] = newTime;
state_[watchFd] = MODIFIED;
localState_[watchFd] = MODIFIED;
}
else
{
state_[watchFd] = UNMODIFIED;
localState_[watchFd] = UNMODIFIED;
}
}
}
@ -422,12 +421,14 @@ void Foam::fileMonitor::checkFiles() const
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::fileMonitor::fileMonitor(const bool useInotify)
:
useInotify_(useInotify),
localState_(20),
state_(20),
watchFile_(20),
freeWatchFds_(2),
@ -476,6 +477,7 @@ Foam::label Foam::fileMonitor::addWatch(const fileName& fName)
}
else
{
localState_(watchFd) = UNMODIFIED;
state_(watchFd) = UNMODIFIED;
watchFile_(watchFd) = fName;
}
@ -517,30 +519,26 @@ void Foam::fileMonitor::updateStates
{
if (Pstream::master() || !masterOnly)
{
// Update the localState_
checkFiles();
}
if (syncPar)
{
// Pack current state (might be on master only)
// Pack local state (might be on master only)
PackedList<2> stats(state_.size(), MODIFIED);
if (Pstream::master() || !masterOnly)
{
forAll(state_, watchFd)
{
stats[watchFd] = static_cast<unsigned int>(state_[watchFd]);
stats[watchFd] = static_cast<unsigned int>
(
localState_[watchFd]
);
}
}
// Save local state for warning message below
PackedList<2> thisProcStats;
if (!masterOnly)
{
thisProcStats = stats;
}
// Scatter or reduce to synchronise state
if (masterOnly)
{
@ -573,33 +571,34 @@ void Foam::fileMonitor::updateStates
}
// Update local state
// Update synchronised state
forAll(state_, watchFd)
{
if (masterOnly)
// Assign synchronised state
unsigned int stat = stats[watchFd];
state_[watchFd] = fileState(stat);
if (!masterOnly)
{
// No need to check for inconsistent state. Just assign.
unsigned int stat = stats[watchFd];
state_[watchFd] = fileState(stat);
}
else
{
// Check for inconsistent state before assigning.
if (thisProcStats[watchFd] != UNMODIFIED)
// Give warning for inconsistent state
if (state_[watchFd] != localState_[watchFd])
{
if (stats[watchFd] == UNMODIFIED)
if (debug)
{
WarningIn("fileMonitor::updateStates(const bool) const")
<< "Delaying reading " << watchFile_[watchFd]
Pout<< "fileMonitor : Delaying reading "
<< watchFile_[watchFd]
<< " due to inconsistent "
"file time-stamps between processors"
<< endl;
}
else
{
unsigned int stat = stats[watchFd];
state_[watchFd] = fileState(stat);
}
WarningIn
(
"fileMonitor::updateStates"
"(const bool, const bool) const"
) << "Delaying reading " << watchFile_[watchFd]
<< " due to inconsistent "
"file time-stamps between processors" << endl;
}
}
}
@ -610,6 +609,7 @@ void Foam::fileMonitor::updateStates
void Foam::fileMonitor::setUnmodified(const label watchFd)
{
state_[watchFd] = UNMODIFIED;
localState_[watchFd] = UNMODIFIED;
if (!useInotify_)
{

9
src/OSspecific/POSIX/fileMonitor.H
View File

@ -71,7 +71,7 @@ public:
{
UNMODIFIED = 0,
MODIFIED = 1,
DELETED = 2,
DELETED = 2
};
static const NamedEnum<fileState, 3> fileStateNames_;
@ -82,7 +82,10 @@ private:
//- Whether to use inotify (requires -DFOAM_USE_INOTIFY, see above)
const bool useInotify_;
//- State for all watchFds
//- State for all watchFds based on local files
mutable DynamicList<fileState> localState_;
//- State for all watchFds - synchronised
mutable DynamicList<fileState> state_;
//- Filename for all watchFds
@ -97,7 +100,7 @@ private:
// Private Member Functions
//- Update state_ from any events.
//- Update localState_ from any events.
void checkFiles() const;
//- Disallow default bitwise copy construct

1
src/OpenFOAM/db/regIOobject/regIOobject.C
View File

@ -60,7 +60,6 @@ Foam::regIOobject::fileCheckTypes Foam::regIOobject::fileModificationChecking
debug::optimisationSwitches().lookup
(
"fileModificationChecking"
//Foam::regIOobject::timeStamp
)
)
);

11
src/OpenFOAM/global/argList/argList.C
View File

@ -31,6 +31,7 @@ License
#include "IOobject.H"
#include "JobInfo.H"
#include "labelList.H"
#include "regIOobject.H"
#include <cctype>
@ -767,6 +768,16 @@ Foam::argList::argList
sigQuit_.set(bannerEnabled);
sigSegv_.set(bannerEnabled);
if (bannerEnabled)
{
Info<< "Monitoring run-time modified files using "
<< regIOobject::fileCheckTypesNames
[
regIOobject::fileModificationChecking
]
<< endl;
}
if (Pstream::master() && bannerEnabled)
{
Info<< endl;