file hdf5printer/VertexBufferNumeric1D_HDF5.hpp
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Namespaces
| Name |
|---|
| Gambit TODO: see if we can use this one: |
| Gambit::Printers Forward declaration. |
Classes
| Name | |
|---|---|
| class | Gambit::Printers::VertexBufferNumeric1D_HDF5 VertexBuffer for simple numerical types - derived version that handles output to hdf5. |
Detailed Description
Author: Ben Farmer (benjamin.farmer@fysik.su.se)
Date: 2015 May
Declaration of VertexBufferNumeric1D_HDF5 class. This version of VertexBufferNumeric1D adds routines for sending the Numeric1D buffers to a DataSetInterface object, which in turn handles the output to a HDF5 file.
Authors (add name and date if you modify):
Source code
// GAMBIT: Global and Modular BSM Inference Tool
// *********************************************
/// \file
///
/// Declaration of VertexBufferNumeric1D_HDF5
/// class.
/// This version of VertexBufferNumeric1D adds
/// routines for sending the Numeric1D buffers
/// to a DataSetInterface object, which in turn
/// handles the output to a HDF5 file.
///
/// *********************************************
///
/// Authors (add name and date if you modify):
///
/// \author Ben Farmer
/// (benjamin.farmer@fysik.su.se)
/// \date 2015 May
///
/// *********************************************
#ifndef __VertexBufferNumeric1D_HDF5_hpp__
#define __VertexBufferNumeric1D_HDF5_hpp__
#include <cstddef>
#include <sstream>
// HDF5 C bindings
#include <hdf5.h>
// Gambit
#include "gambit/Printers/VertexBufferNumeric1D.hpp"
#include "gambit/Printers/printers/hdf5printer/DataSetInterfaceScalar.hpp"
#include "gambit/Utils/standalone_error_handlers.hpp"
#include "gambit/Logs/logger.hpp"
// MPI bindings
#include "gambit/Utils/mpiwrapper.hpp"
//#define HDF5_BUF_DEBUG /* Triggers debugging output */
//#define MONITOR_BUF "pointID" /* String ID of buffer to monitor. */
namespace Gambit {
namespace Printers {
/// VertexBuffer for simple numerical types - derived version that handles output to hdf5
template<class T, std::size_t CHUNKLENGTH>
class VertexBufferNumeric1D_HDF5 : public VertexBufferNumeric1D<T,CHUNKLENGTH>
{
private:
/// Interfaces to HDF5 datasets
DataSetInterfaceScalar<bool,CHUNKLENGTH> _dsetvalid; // validity bools
DataSetInterfaceScalar<T,CHUNKLENGTH> _dsetdata; // actual data
/// Getters for HDF5 dataset interfaces (extra error checking)
DataSetInterfaceScalar<bool,CHUNKLENGTH>& dsetvalid(); // validity bools
DataSetInterfaceScalar<T,CHUNKLENGTH>& dsetdata(); // actual data
/// Extendible backup buffers for RA writes that need to be
/// postponed due to the original sync writes not having been
/// performed yet.
std::vector<std::pair<T,PPIDpair>> postpone_write_queue_and_locs;
/// Dimension-0 index of the next empty hyperslab in the output datasets
unsigned long nextemptyslab = 0;
/// Variable obtained from somewhere external to the buffer,
/// used to track the synchronisation position with other buffers
/// Currently only used to ensure the RA buffers end up the same
/// size as the sync buffers.
unsigned long target_sync_pos = 0;
public:
/// Constructors
VertexBufferNumeric1D_HDF5();
#ifdef WITH_MPI
VertexBufferNumeric1D_HDF5
( hid_t location_id
, const std::string& name
, const int vID
, const unsigned int i
, const bool sync
, const bool silence
, const bool resume
, const BuffTags& tags
, const GMPI::Comm& pComm
);
#endif
// No MPI constructor
VertexBufferNumeric1D_HDF5
( hid_t location_id
, const std::string& name
, const int vID
, const unsigned int i
, const bool sync
, const bool silence
, const bool resume
, const char access
);
/// Destructor
/// Make sure buffer contents are written to file when buffer object is destroyed
~VertexBufferNumeric1D_HDF5();
/// (virtual for debugging purposes)
/// Current absolute "write head" position for synchronised buffers
virtual unsigned long dset_head_pos() { return nextemptyslab + this->get_head_position(); }
// Print to std::cout a report on the sync status of this buffer
virtual void sync_report();
/// Write sync buffer to HDF5 dataset
virtual void write_to_disk();
/// Write externally-supplied buffer to HDF5 dataset
virtual void write_external_to_disk(const T (&values)[CHUNKLENGTH], const bool (&isvalid)[CHUNKLENGTH]);
/// Reset the output (non-synchronised datasets only, unless force=true)
virtual void reset(bool force=false);
// Finalise writing to underlying output. Do not do any more writing after this!
virtual void finalise();
/// Send random access write queue to dataset interfaces for writing
virtual void RA_write_to_disk(const std::map<PPIDpair, ulong>& PPID_to_dsetindex);
/// Attempt to write any postponed RA_write attempts to disk
void attempt_postponed_RA_write_to_disk(const std::map<PPIDpair, ulong>& PPID_to_dsetindex);
/// Update the variables needed to tracks the currently target dset slot
/// (really just updates the nextemptyslab variable)
virtual void update_dset_head_pos()
{
if(this->myRank==0 or not this->MPI_mode()) // Only the master process has access to this information, unless we are in non-MPI mode
{
if(dsetvalid().get_nextemptyslab() != dsetdata().get_nextemptyslab())
{
// The two datasets controlled by this buffer should always remain synchronised!
std::ostringstream errmsg;
errmsg << "rank "<<this->myRank<<": Error! Validity and Data datasets have gone out of sync in buffer with label '"<<this->get_label()<<"'! This is a bug in the VertexBufferNumeric1D_HDF5 class. Please report it.";
printer_error().raise(LOCAL_INFO, errmsg.str());
}
nextemptyslab = dsetvalid().get_nextemptyslab();
}
}
/// Ensure dataset "write head" (i.e. next append) is prepared to
/// write to the supplied absolute dataset index (e.g. by inserting
/// blank entries if need)
void synchronise_output_to_position(const ulong i);
/// Check how many RA writes are waiting in the postpone queue
/// (mostly for debugging purposes)
std::size_t postponed_RA_queue_length() { return postpone_write_queue_and_locs.size(); }
// Needed for checking that dataset sizes on disk are consistent
ulong get_dataset_length();
};
/// @{ VertexBufferNumeric1D_HDF5 member function definitions
/// Constructors
template<class T, std::size_t CHUNKLENGTH>
VertexBufferNumeric1D_HDF5<T,CHUNKLENGTH>::VertexBufferNumeric1D_HDF5()
: VertexBufferNumeric1D<T,CHUNKLENGTH>()
, _dsetvalid()
, _dsetdata()
, postpone_write_queue_and_locs()
{}
#ifdef WITH_MPI
template<class T, std::size_t CHUNKLENGTH>
VertexBufferNumeric1D_HDF5<T,CHUNKLENGTH>::VertexBufferNumeric1D_HDF5(
hid_t location_id
, const std::string& name
, const int vID
, const unsigned int i
, const bool sync
, const bool silence
, const bool resume
, const BuffTags& tags
, const GMPI::Comm& pComm
)
: VertexBufferNumeric1D<T,CHUNKLENGTH>(
name
, vID
, i
, sync
, silence
, resume
, tags
, pComm
)
, _dsetvalid()
, _dsetdata()
, postpone_write_queue_and_locs()
{
if(this->MPI_mode() and location_id==-1 and this->myRank==0)
{
std::ostringstream errmsg;
errmsg << "rank "<<this->myRank<<": Error! Tried to create buffer '"<<this->get_label()<<"', but supplied HDF5 location pointer was -1 (and we are the rank 0 process, who needs this pointer)";
printer_error().raise(LOCAL_INFO, errmsg.str());
}
else if(not silence)
{
if(resume)
{
logger()<<LogTags::printers<<"Attempting to resume writing to dataset '"<<name<<"_isvalid'...";
}
else
{
logger()<<LogTags::printers<<"Creating new dataset '"<<name<<"_isvalid'...";
}
_dsetvalid = DataSetInterfaceScalar<bool,CHUNKLENGTH>(location_id, name+"_isvalid", resume);
if(resume)
{
logger()<<std::endl<<LogTags::printers<<"Attempting to resume writing to dataset '"<<name<<"'...";
}
else
{
logger()<<std::endl<<LogTags::printers<<"Creating new dataset '"<<name<<"'...";
}
_dsetdata = DataSetInterfaceScalar<T,CHUNKLENGTH>(location_id, name, resume);
logger()<<EOM; // Leave this to calling function
}
}
#endif
// No MPI constructor
template<class T, std::size_t CHUNKLENGTH>
VertexBufferNumeric1D_HDF5<T,CHUNKLENGTH>::VertexBufferNumeric1D_HDF5(
hid_t location_id
, const std::string& name
, const int vID
, const unsigned int i
, const bool sync
, const bool silence
, const bool resume
, char access
)
: VertexBufferNumeric1D<T,CHUNKLENGTH>(
name
, vID
, i
, sync
, silence
, resume
, access
)
, _dsetvalid()
, _dsetdata()
, postpone_write_queue_and_locs()
{
if(this->MPI_mode() and location_id==-1 and this->myRank==0)
{
std::ostringstream errmsg;
errmsg << "rank "<<this->myRank<<": Error! Tried to create buffer '"<<this->get_label()<<"', but supplied HDF5 location pointer was NULL (and we are the rank 0 process, who needs this pointer)";
printer_error().raise(LOCAL_INFO, errmsg.str());
}
else if(not silence)
{
if(resume)
{
logger()<<LogTags::printers<<"Attempting to resume writing to dataset '"<<name<<"_isvalid'...";
}
else
{
logger()<<LogTags::printers<<"Creating new dataset '"<<name<<"_isvalid'...";
}
_dsetvalid = DataSetInterfaceScalar<bool,CHUNKLENGTH>(location_id, name+"_isvalid", resume, this->access_mode());
if(resume)
{
logger()<<std::endl<<LogTags::printers<<"Attempting to resume writing to dataset '"<<name<<"'...";
}
else
{
logger()<<std::endl<<LogTags::printers<<"Creating new dataset '"<<name<<"'...";
}
_dsetdata = DataSetInterfaceScalar<T,CHUNKLENGTH>(location_id, name, resume, this->access_mode());
logger()<<EOM; // Leave this to calling function
}
}
/// Destructor
template<class T, std::size_t L>
VertexBufferNumeric1D_HDF5<T,L>::~VertexBufferNumeric1D_HDF5()
{
//TODO: Do this in some more controlled way
//if(this->is_synchronised()) { write_to_disk(); }
//else
//{
// RA_write_to_disk();
//}
}
// Print out report on buffer sync status
template<class T, std::size_t L>
void VertexBufferNumeric1D_HDF5<T,L>::sync_report()
{
std::cout<<"rank "<<this->myRank<<":-----------------------------------------"<<std::endl;
std::cout<<"rank "<<this->myRank<<": Begin sync report for buffer "<<this->get_label()<<std::endl;
std::cout<<"rank "<<this->myRank<<": Synchronised? = "<<this->is_synchronised()<<std::endl;
std::cout<<"rank "<<this->myRank<<": nextemptyslab = "<<nextemptyslab<<std::endl;
std::cout<<"rank "<<this->myRank<<": head_position = "<<this->get_head_position()<<std::endl;
std::cout<<"rank "<<this->myRank<<": dset_head_pos = "<<this->dset_head_pos()<<std::endl;
std::cout<<"rank "<<this->myRank<<": donepoint() = "<<this->donepoint()<<std::endl;
std::cout<<"rank "<<this->myRank<<": sync_buffer_full() = "<<this->sync_buffer_full<<std::endl;
std::cout<<"rank "<<this->myRank<<": End sync report for buffer "<<this->get_label()<<std::endl;
std::cout<<"rank "<<this->myRank<<":-----------------------------------------"<<std::endl;
}
/// @{ Safe dataset getters
template<class T, std::size_t L>
DataSetInterfaceScalar<bool,L>& VertexBufferNumeric1D_HDF5<T,L>::dsetvalid()
{
#ifdef WITH_MPI
if(this->MPI_mode() and this->myRank!=0)
{
std::ostringstream errmsg;
errmsg << "rank "<<this->myRank<<": Error! VertexBuffer (HDF5 type) in non-master process tried to access dsetvalid! This doesn't exist except on the master process (buffer is "<<this->get_label()<<")";
printer_error().raise(LOCAL_INFO, errmsg.str());
}
#endif
return _dsetvalid;
}
template<class T, std::size_t L>
DataSetInterfaceScalar<T,L>& VertexBufferNumeric1D_HDF5<T,L>::dsetdata()
{
#ifdef WITH_MPI
if(this->MPI_mode() and this->myRank!=0)
{
std::ostringstream errmsg;
errmsg << "rank "<<this->myRank<<"Error! VertexBuffer (HDF5 type) in non-master process tried to access dsetdata! This doesn't exist except on the master process (buffer is "<<this->get_label()<<")";
printer_error().raise(LOCAL_INFO, errmsg.str());
}
#endif
return _dsetdata;
}
/// @}
/// Override of buffer dump function to handle HDF5 output
template<class T, std::size_t L>
void VertexBufferNumeric1D_HDF5<T,L>::write_to_disk()
{
if(this->is_synchronised()) {
// Check if buffer is empty, and whether we really want to write an
// empty buffer to disk.
if( not this->sync_buffer_is_empty() or
this->dset_head_pos() >= dsetvalid().dset_length()
) // Should only have to check one of the datasets... perhaps add error checking for this.
{
dsetvalid().writenewchunk(this->buffer_valid);
dsetdata().writenewchunk(this->buffer_entries);
// Update the head tracking variables to reflect the new dset chunk
update_dset_head_pos();
}
}
else {
std::ostringstream errmsg;
errmsg << "rank "<<this->myRank<<": Error! Tried to write_to_disk() synchronised write buffer of buffer with name "<<this->get_label()<<", but buffer is not flagged as running in synchronised mode! Please report this bug.";
printer_error().raise(LOCAL_INFO, errmsg.str());
}
}
/// Manual command to send an arbitrary buffer to be written to disk
template<class T, std::size_t CHUNKLENGTH>
void VertexBufferNumeric1D_HDF5<T,CHUNKLENGTH>::write_external_to_disk(const T (&values)[CHUNKLENGTH], const bool (&isvalid)[CHUNKLENGTH])
{
if(not this->is_silenced()) {
dsetvalid().writenewchunk(isvalid);
dsetdata().writenewchunk(values);
// Update sync information to reflect the presence of the new chunk
update_dset_head_pos();
}
}
/// Reset the output (non-synchronised datasets only)
template<class T, std::size_t L>
void VertexBufferNumeric1D_HDF5<T,L>::reset(bool force)
{
if(not force and this->is_synchronised())
{
std::ostringstream errmsg;
errmsg << "rank "<<this->myRank<<": Error! Tried to reset() a synchronised buffer! This is forbidden unless force=true. (buffer name = "<<this->get_label()<<")";
printer_error().raise(LOCAL_INFO, errmsg.str());
}
// Clear the sync buffers
this->clear();
/// Empty the queue of postponed writes, because it would now
/// be erased had we gotten around to writing it.
postpone_write_queue_and_locs.clear();
if(this->myRank==0 or not this->MPI_mode()) // Can only touch datasets on master process (unless we are in non-MPI mode)
{
/// Invalidate the contents of the linked datasets
/// This can be done by simply resetting the all validity bools to "false"
dsetvalid().zero();
//dsetdata().zero(); // Should work fine, but should be unneccesary.
// Point the write head (or "cursor") back at the beginning of the output datasets.
dsetvalid().reset_nextemptyslab();
dsetdata().reset_nextemptyslab();
}
}
/// Attempt to write postponed RA entries to disk
template<class T, std::size_t CHUNKLENGTH>
void VertexBufferNumeric1D_HDF5<T,CHUNKLENGTH>::attempt_postponed_RA_write_to_disk(const std::map<PPIDpair, ulong>& PPID_to_dsetindex)
{
/// Use the provided PPIDpair-->dset_location map to locate the target
/// parameter points in the output dataset.
/// (Temp RA buffers for immediate writes)
bool valid[CHUNKLENGTH];
T now_write_queue[CHUNKLENGTH];
hsize_t now_abs_write_locations[CHUNKLENGTH];
uint now_i=0; // queue_length
/// Postponed entries which still cannot be written will be added here.
std::vector<std::pair<T,PPIDpair>> failed;
/// Need to go through the postponed entries one CHUNKLENGTH at a time
typedef typename std::vector<std::pair<T,PPIDpair>>::iterator it_type;
it_type itpp = postpone_write_queue_and_locs.begin();
while(itpp != postpone_write_queue_and_locs.end())
{
T& val = itpp->first;
PPIDpair& loc = itpp->second;
// Convert loc to abs dataset index (if possible)
std::map<PPIDpair, ulong>::const_iterator it
= PPID_to_dsetindex.find(loc);
if(it==PPID_to_dsetindex.end())
{
// No PPID found
failed.push_back(*itpp);
}
else
{
// PPID found; convert to absolute dataset index and add to "now" queue
now_write_queue[now_i] = val;
now_abs_write_locations[now_i] = it->second;
now_i++;
}
// Increment iterator (need to do this before 'if' statement around RA_write call)
++itpp;
// Write "now" buffers to disk, if they aren't empty
if(now_i != 0)
{
if(now_i>CHUNKLENGTH)
{
std::ostringstream errmsg;
errmsg << "rank "<<this->myRank<<": Error! now_i has exceeded CHUNKLENGTH (now_i=="<<now_i<<") during attempt to perform postponed RA_writes. (buffer name = "<<this->get_label()<<")";
printer_error().raise(LOCAL_INFO, errmsg.str());
}
// Do the write only if buffer is full or postpone queue is finished and we
// are about to finish looping.
if(now_i==CHUNKLENGTH or itpp == postpone_write_queue_and_locs.end())
{
std::fill(valid, valid+CHUNKLENGTH, false);
std::fill(valid, valid+now_i, true);
dsetvalid().RA_write(valid, now_abs_write_locations, now_i);
dsetdata().RA_write (now_write_queue, now_abs_write_locations, now_i);
//std::cout<<"Wrote "<<now_i<<" postponed RA items to disk"<<std::endl;
now_i = 0; // Reset buffer
}
}
}
// put failed write attempts back into the postpone queue
postpone_write_queue_and_locs = failed;
}
/// Send random access write queue to dataset interfaces for writing
template<class T, std::size_t CHUNKLENGTH>
void VertexBufferNumeric1D_HDF5<T,CHUNKLENGTH>::RA_write_to_disk(const std::map<PPIDpair, ulong>& PPID_to_dsetindex)
{
if(this->is_synchronised())
{
std::ostringstream errmsg;
errmsg << "rank "<<this->myRank<<": Error! Non-synchronised buffer attempted to perform RA_write_to_disk! Only non-synchronised buffers are permitted to do this. (buffer name = "<<this->get_label()<<")";
printer_error().raise(LOCAL_INFO, errmsg.str());
}
if(not this->is_silenced())
{
dsetvalid().extend_dset(target_sync_pos);
dsetdata().extend_dset(target_sync_pos);
#ifdef DEBUG_MODE
std::cout<<"rank "<<this->myRank<<": Extended RA dset '"<<this->get_label()<<"' to at least size "<<target_sync_pos<<std::endl;
#endif
if (this->RA_queue_length!=0 or postpone_write_queue_and_locs.size()!=0)
{
#ifdef DEBUG_MODE
std::cout<<"rank "<<this->myRank<<": Doing RA_write_to_disk for buffer '"<<this->get_label()<<"' (note: target_sync_pos="<<target_sync_pos<<", dset_head_pos()="<<this->dset_head_pos()<<")"<<std::endl;
#endif
// Attempt to write any existing postponed RA write attempts to disk (again)
attempt_postponed_RA_write_to_disk(PPID_to_dsetindex);
//std::cout<<"rank "<<this->myRank<<": Number of items remaining in postpone queue after write attempt = "<<postpone_write_queue_and_locs.size()<<"); buffer is '"<<this->get_label()<<"'"<<std::endl;
/// Use the provided PPIDpair-->dset_location map to locate the target
/// parameter points in the output dataset.
/// (Temp RA buffers for immediate writes)
bool valid[CHUNKLENGTH];
T now_write_queue[CHUNKLENGTH];
hsize_t now_abs_write_locations[CHUNKLENGTH];
uint now_i=0; // queue_length
// Now go through the current RA_queue and try to write them to disk
for(ulong i=0; i<this->RA_queue_length; i++)
{
// Some write locations may not be known yet due to the original
// data not yet having been written to disk from its sync buffer.
// We will have to postpone writing these until the next RA_write
// attempt.
std::map<PPIDpair, ulong>::const_iterator it
= PPID_to_dsetindex.find(this->RA_write_locations[i]);
if(it==PPID_to_dsetindex.end())
{
// No PPID found; add to "postpone" queue
postpone_write_queue_and_locs.push_back(
std::make_pair(this->RA_write_queue[i],
this->RA_write_locations[i])
);
}
else
{
// PPID found; convert to absolute dataset index and add to "now" queue
now_write_queue[now_i] = this->RA_write_queue[i];
now_abs_write_locations[now_i] = it->second;
now_i++;
}
}
// Write "now" buffers to disk, if they aren't empty
if(now_i != 0)
{
if(now_i>CHUNKLENGTH)
{
std::ostringstream errmsg;
errmsg << "rank "<<this->myRank<<": Error! now_i has exceeded CHUNKLENGTH (now_i=="<<now_i<<"). (buffer name = "<<this->get_label()<<")";
printer_error().raise(LOCAL_INFO, errmsg.str());
}
std::fill(valid, valid+CHUNKLENGTH, false);
std::fill(valid, valid+now_i, true);
#ifdef DEBUG_MODE
std::cout<<"rank "<<this->myRank<<": writing buffer for "<<this->get_label()<<" to disk; now_i="<<now_i<<std::endl;
#endif
dsetvalid().RA_write(valid, now_abs_write_locations, now_i);
dsetdata().RA_write (now_write_queue, now_abs_write_locations, now_i);
}
}
}
}
/// Ensure dataset "write head" (i.e. next append) is prepared to
/// write to the supplied absolute dataset index (e.g. by inserting
/// blank entries if need)
///
/// NEW MEANING:
/// Ensure that the supplied index has been written to, and that the
/// next append will happen to the next index above it.
template<class T, std::size_t L>
void VertexBufferNumeric1D_HDF5<T,L>::synchronise_output_to_position(const ulong sync_pos)
{
if(not this->is_silenced())
{
// Make sure the correct dset_head_pos() is known
update_dset_head_pos();
// Update the variable which tracks the current sync position.
// (do this regardless of whether this is a sync buffer or not)
target_sync_pos = sync_pos;
#ifdef HDF5_BUF_DEBUG
std::cout<<"rank "<<this->myRank<<": Updated target_sync_pos to '"<<target_sync_pos<<" in buffer "<<this->get_label()<<std::endl;
#endif
if(this->is_synchronised())
{
#ifdef HDF5_BUF_DEBUG
#ifdef MONITOR_BUF
if(this->get_label()==MONITOR_BUF) {
#endif
std::cout<<"rank "<<this->myRank<<": Synchronising buffer '"<<this->get_label()<<"' to position "<<sync_pos<<" (current dset_head_pos() = "<<this->dset_head_pos()<<")"<<std::endl;
#ifdef MONITOR_BUF
}
#endif
#endif
// Compare target position to current sync position and see what we need to do
// The plus one is because the head_pos should be one larger than the sync_pos
// for buffers who already did an append to the sync_pos; these buffers therefore
// do not need to move.
//
const long movediff = sync_pos+1 - this->dset_head_pos();
if(movediff==1)
{
// Set the current point as having no valid data and move to the next
this->skip_append();
}
else if(movediff<0)
{
std::ostringstream errmsg;
errmsg << "rank "<<this->myRank<<": Error! Attempted to move HDF5 write position backwards in buffer with label '"<<this->get_label()<<"'! (movediff ("<<movediff<<") = sync_pos ("<<sync_pos<<")+1 - dset_head_pos() ("<<this->dset_head_pos()<<")) This is a bug in the VertexBufferNumeric1D_HDF5 class or in a class which uses it (probably HDF5Printer). Please report it. (Note, writing to old points can be done but requires using special write functions).";
printer_error().raise(LOCAL_INFO, errmsg.str());
}
else if (movediff==0)
{
if(this->donepoint())
{
std::ostringstream errmsg;
errmsg << "rank "<<this->myRank<<": Error! Attempted to move HDF5 write position by 0 slots in buffer with label '"<<this->get_label()<<"' (movediff ("<<movediff<<") = sync_pos ("<<sync_pos<<")+1 - dset_head_pos ("<<this->dset_head_pos()<<")); this part is fine, however the buffer indicates that this position has already received a write (donepoint()==true) so it should have moved forward! This is a bug in the VertexBufferNumeric1D_HDF5 class or in a class which uses it (probably HDF5Printer). Please report it.";
printer_error().raise(LOCAL_INFO, errmsg.str());
}
// otherwise no problem; carry on.
}
else if (movediff>1) // and movediff!=CHUNKLENGTH+1)
{
std::ostringstream errmsg;
errmsg << "rank "<<this->myRank<<": Error! Attempted to move HDF5 write position by >1 slots ("<<movediff<<") in buffer with label '"<<this->get_label()<<"' (movediff ("<<movediff<<") = sync_pos ("<<sync_pos<<")+1 - dset_head_pos() ("<<this->dset_head_pos()<<")). Buffer synchronisation should only happen one slot at a time. This is a bug in the VertexBufferNumeric1D_HDF5 class or in a class which uses it (probably HDF5Printer). Please report it.";
printer_error().raise(LOCAL_INFO, errmsg.str());
}
#ifdef HDF5_BUF_DEBUG
#ifdef MONITOR_BUF
if(this->get_label()==MONITOR_BUF) {
#endif
long slots_left = L;
slots_left -= this->get_head_position() - this->donepoint();
std::cout<<"rank "<<this->myRank<<": Moved "<<movediff<<" slot(s). # unwritten slots left in buffer = "<<slots_left<<". buffer_is_full = "<<this->sync_buffer_is_full()<<std::endl;
std::cout<<"rank "<<this->myRank<<": Buffer length:"<<L<<std::endl;
std::cout<<"rank "<<this->myRank<<": head_position:"<<this->get_head_position()<<std::endl;
std::cout<<"rank "<<this->myRank<<": donepoint() :"<<this->donepoint()<<std::endl;
#ifdef MONITOR_BUF
}
#endif
#endif
}
}
}
template<class T, std::size_t L>
ulong VertexBufferNumeric1D_HDF5<T,L>::get_dataset_length()
{
if(dsetvalid().dset_length() != dsetdata().dset_length())
{
std::ostringstream errmsg;
errmsg << "rank "<<this->myRank<<": Error! Lengths of 'data' and 'valid' datasets for buffer "<<this->get_label()<<" are different ("<<dsetdata().dset_length()<<" and "<<dsetvalid().dset_length()<<" respectively). This should never happen.";
printer_error().raise(LOCAL_INFO, errmsg.str());
}
return dsetdata().dset_length();
}
// Finalise writing to underlying output. Do not do any more writing after this!
template<class T, std::size_t L>
void VertexBufferNumeric1D_HDF5<T,L>::finalise()
{
dsetdata().closeDataSet();
dsetvalid().closeDataSet();
}
/// @}
}
}
#endif
Updated on 2024-07-18 at 13:53:33 +0000