SiStripLatency Class Reference

#include <SiStripLatency.h>

Classes
struct	EqualByLatencyAndMode
struct	Latency
struct	OrderByDetIdAndApv
struct	OrderByLatencyAndMode

Public Types
typedef std::vector< Latency > ::const_iterator	latConstIt
typedef std::vector< Latency > ::iterator	latIt

Public Member Functions
void	allLatencies (std::vector< uint16_t > &allLatenciesVector) const
	Fills the passed vector with all the possible latencies in the Tracker. More...
std::vector< Latency >	allLatencyAndModes () const
void	allModes (std::vector< uint16_t > &allModesVector) const
	Fills the passed vector with all the possible modes in the Tracker. More...
std::vector< Latency >	allUniqueLatencyAndModes ()
void	compress ()
uint16_t	latency (const uint32_t detId, const uint16_t apv) const
std::pair< uint16_t, uint16_t >	latencyAndMode (const uint32_t detId, const uint16_t apv) const
uint16_t	mode (const uint32_t detId, const uint16_t apv) const
void	printDebug (std::stringstream &ss) const
	Prints the full list of all ranges and corresponding values of latency and mode. More...
void	printSummary (std::stringstream &ss) const
	Prints the number of ranges as well as the value of singleLatency and singleMode. More...
bool	put (const uint32_t detId, const uint16_t apv, const uint16_t latency, const uint16_t mode)
uint16_t	singleLatency () const
	If all the latency values stored are equal return that value, otherwise return -1. More...
uint16_t	singleMode () const
int16_t	singleReadOutMode () const
	SiStripLatency ()

Private Member Functions
const latConstIt	position (const uint32_t detId, const uint16_t apv) const
	Used to compute the position with the lower_bound binary search. More...

Private Attributes
std::vector< Latency >	latencies_

Detailed Description

Holds the latency and the mode of the run.
The latency is stored per apv and the information is compressed by reducing sequences of apvs with the same latency to a single value plus information on the start and end of the sequence.
The mode is a single value, stored as a char. The actual operation mode bit is bit number 3 starting from 0. The bitmask to retrieve the information in the number 8 (1000).

• (mode & 8) == 0 : deconvolution mode
  
• (mode & 8) == 8 : peak mode
  See here http://cdsweb.cern.ch/record/1069892 page 13 section 5.5 table 7 for the definition of possible modes.
  The put method requires the latency and mode values for a given apv and detId.
  
  The internal Latency object stores the detId and apv value in a compressed (bit shifted) uint32_t holding both the values. It stores the latency value in a uint8_t (unsigned char). The APV user guide reports a maximum value of 191 for the latency, so the uint8_t (0-255) is enough. If the value is not filled or the detId is not found it will return latency = 255.
  The mode value is also stored in an unsigned char (possible values 0-255). The invalid case returns mode = 0 in this case.
  To save space, since typically the latency and mode is the same for all apvs, the ranges of consecutive detIds and apvs are collapsed in the last value, so that the lower_bound binary search will return the correct latency and mode.
  
  Methods are provided to extract latency and mode (separately or together in a pair) for each apv.
  If the value of latency (mode) is the same for the whole Tracker, the singleLatency() (singleMode()) method will return it, otherwise it will return 255 (0).
  
  The method allLatencyAndModes() returns the internal vector<Latency> (by value).
  The method allUniqueLatencyAndModes() returns all the combinations of latency and mode present.
  ATTENTION: This method assumes that latency and mode are stored in a unsinged short.
  The method singleReadOutMode() returns: 1 if all the Tracker is in peak, 0 if it is in deco, -1 if it is in mixed mode
  
  The method allModes (allLatencies) fill the passed vector with all different modes (latencies) in the Tracker.
  ATTENTION: the biggest possible detId value that can be stored is 536870911 because 29 bits out of 32 are reserved for the detId and the remaining 3 for the apv value (1-6).
  The biggest possible Tracker detId at this moment is 470178036 so this is not a problem. In any case the code will throw an "InsertFailure" cms::Exception if trying to insert a detId above the maximum and output a detailed LogError message about the problem.

Definition at line 55 of file SiStripLatency.h.

Member Typedef Documentation

typedef std::vector<Latency>::const_iterator SiStripLatency::latConstIt

Definition at line 80 of file SiStripLatency.h.

typedef std::vector<Latency>::iterator SiStripLatency::latIt

Definition at line 79 of file SiStripLatency.h.

Constructor & Destructor Documentation

SiStripLatency::SiStripLatency ( )

inline

Definition at line 59 of file SiStripLatency.h.

{}

Member Function Documentation

void SiStripLatency::allLatencies

(

std::vector< uint16_t > &

allLatenciesVector

)

const

Fills the passed vector with all the possible latencies in the Tracker.

Definition at line 153 of file SiStripLatency.cc.

References latencies_, and python.multivaluedict::sort().

Referenced by printSummary().

{

  for( latConstIt it = latencies_.begin(); it != latencies_.end(); ++it ) {
    allLatenciesVector.push_back(it->latency);
  }
  // The Latencies are sorted by DetIdAndApv, we need to sort the latencies again and then remove duplicates
  sort( allLatenciesVector.begin(), allLatenciesVector.end() );
  allLatenciesVector.erase( unique( allLatenciesVector.begin(), allLatenciesVector.end() ), allLatenciesVector.end() );
}

std::vector<Latency> SiStripLatency::allLatencyAndModes ( ) const

inline

Definition at line 92 of file SiStripLatency.h.

References latencies_.

{ return latencies_; }

void SiStripLatency::allModes

(

std::vector< uint16_t > &

allModesVector

)

const

Fills the passed vector with all the possible modes in the Tracker.

Definition at line 114 of file SiStripLatency.cc.

References latencies_, and python.multivaluedict::sort().

Referenced by singleReadOutMode().

{
  for( latConstIt it = latencies_.begin(); it != latencies_.end(); ++it ) {
    allModesVector.push_back(it->mode);
  }
  // The Latencies are sorted by DetIdAndApv, we need to sort the modes again and then remove duplicates
  sort( allModesVector.begin(), allModesVector.end() );
  allModesVector.erase( unique( allModesVector.begin(), allModesVector.end() ), allModesVector.end() );
}

std::vector< SiStripLatency::Latency > SiStripLatency::allUniqueLatencyAndModes

(

)

Definition at line 165 of file SiStripLatency.cc.

References latencies_, and python.multivaluedict::sort().

{
  std::vector<Latency> latencyCopy(latencies_);
  sort( latencyCopy.begin(), latencyCopy.end(), OrderByLatencyAndMode() );
  latencyCopy.erase( unique( latencyCopy.begin(), latencyCopy.end(), SiStripLatency::EqualByLatencyAndMode() ), latencyCopy.end() );
  return latencyCopy;
}

void SiStripLatency::compress

(

)

Reduce ranges of consecutive detIdsAndApvs with the same latency and mode to one value (the latest) so that lower_bound will return the correct value for latency and mode.

Definition at line 37 of file SiStripLatency.cc.

References latencies_.

Referenced by SiStripCondObjBuilderFromDb::buildFECRelatedObjects(), and SiStripLatencyGenerator::createObject().

{
  latIt lat = latencies_.begin();
  while( lat != latencies_.end() ) {
    // If it is not the last and it has the same latency and mode as the next one remove it
    if( ((lat+1) != latencies_.end()) && ((lat+1)->mode == lat->mode) && ((lat+1)->latency == lat->latency) ) {
      lat = latencies_.erase(lat);
    }
    else {
      ++lat;
    }
  }
}

uint16_t SiStripLatency::latency	(	const uint32_t	detId,
		const uint16_t	apv
	)		const

Definition at line 51 of file SiStripLatency.cc.

References latencies_, and position().

{
  const latConstIt & pos = position(detId, apv);
  if( pos == latencies_.end() ) {
    return 255;
  }
  return pos->latency;
}

std::pair< uint16_t, uint16_t > SiStripLatency::latencyAndMode	(	const uint32_t	detId,
		const uint16_t	apv
	)		const

Definition at line 69 of file SiStripLatency.cc.

References latencies_, and position().

{
  const latConstIt & pos = position(detId, apv);
  if( pos == latencies_.end() ) {
    return std::make_pair(255, 0);
  }
  return std::make_pair(pos->latency, pos->mode);
}

uint16_t SiStripLatency::mode	(	const uint32_t	detId,
		const uint16_t	apv
	)		const

Definition at line 60 of file SiStripLatency.cc.

References latencies_, and position().

Referenced by singleReadOutMode().

{
  const latConstIt & pos = position(detId, apv);
  if( pos == latencies_.end() ) {
    return 0;
  }
  return pos->mode;
}

const latConstIt SiStripLatency::position ( const uint32_t  detId, const uint16_t  apv  ) const

inlineprivate

Used to compute the position with the lower_bound binary search.

Definition at line 145 of file SiStripLatency.h.

References latencies_.

Referenced by latency(), latencyAndMode(), and mode().

  {
    if( latencies_.empty() ) {
      // std::cout << "SiStripLatency: Error, range is empty" << std::endl;
      return latencies_.end();
    }
    uint32_t detIdAndApv = (detId << 3) | apv;
    latConstIt pos = lower_bound(latencies_.begin(), latencies_.end(), detIdAndApv, OrderByDetIdAndApv());
    return pos;
  }

void SiStripLatency::printDebug

(

std::stringstream &

ss

)

const

Prints the full list of all ranges and corresponding values of latency and mode.

Definition at line 202 of file SiStripLatency.cc.

References latencies_.

Referenced by SiStripCondObjBuilderFromDb::buildFECRelatedObjects(), and printSummary().

{
  ss << "List of all the latencies and modes for the " << latencies_.size() << " ranges in the object:" << std::endl;
  for( latConstIt it = latencies_.begin(); it != latencies_.end(); ++it ) {
    int detId = it->detIdAndApv >> 3;
    int apv = it->detIdAndApv & 7; // 7 is 0...0111
    ss << "for detId = " << detId << " and apv pair = " << apv << " latency = " << int(it->latency) << " and mode = " << int(it->mode) << std::endl;
  }
}

void SiStripLatency::printSummary

(

std::stringstream &

ss

)

const

Prints the number of ranges as well as the value of singleLatency and singleMode.

Definition at line 173 of file SiStripLatency.cc.

References allLatencies(), latencies_, printDebug(), singleLatency(), and singleReadOutMode().

Referenced by SiStripCondObjBuilderFromDb::buildFECRelatedObjects().

{
  ss << std::endl;
  if(singleReadOutMode()==1){
     ss << "SingleReadOut = PEAK" << std::endl;
  }else if(singleReadOutMode()==0){
    ss << "SingleReadOut = DECO" << std::endl;
  }else{
    ss << "SingleReadOut = MIXED" << std::endl;
  }
  uint16_t lat = singleLatency();
  if( lat != 255 ) {
    ss << "All the Tracker has the same latency = " << lat << std::endl;
  }
  else {
    std::vector<uint16_t> allLatenciesVector;
    allLatencies(allLatenciesVector);
    if( allLatenciesVector.size() > 1 ) {
      ss << "There is more than one latency value in the Tracker" << std::endl;
    }
    else {
      ss << "Latency value is " << lat << " that means invalid" << std::endl;
    }
  }
  ss << "Total number of ranges = " << latencies_.size() << std::endl;
  printDebug(ss);
}

bool SiStripLatency::put	(	const uint32_t	detId,
		const uint16_t	apv,
		const uint16_t	latency,
		const uint16_t	mode
	)

Saves the detIdAndApv and latency values in the vector of Latency objects. At the end of the filling phase, the compress method should be called to collapse all ranges in single values. Note that everything would work even if the compress method is not called, only the space used would be more than needed.

Definition at line 10 of file SiStripLatency.cc.

References gather_cfg::cout, relativeConstraints::error, edm::hlt::Exception, and latencies_.

Referenced by SiStripLatencyGenerator::createObject(), SiStripCondObjBuilderFromDb::setDefaultValuesApvLatency(), and SiStripCondObjBuilderFromDb::setValuesApvLatency().

{
  if( detId > 536870911 ) {
    std::stringstream error;
    error << "ERROR: the detId = " << detId << " is bigger than the maximum acceptable value = 2^(29) - 1 = " << 536870911 << std::endl;
    error << "Since we are using 29 bits for the detId and 3 bits for the apv value. The maximum tracker detId at the moment" << std::endl;
    error << "of the writing of this class was 47017836 as defined in CalibTracker/SiStripCommon/data/SiStripDetInfo.dat." << std::endl;
    error << "If the maximum value has changed a revision of this calss is needed, possibly changing the detIdAndApv value from" << std::endl;
    error << "from uint32_t to uint64_t." << std::endl;
    edm::LogError("SiStripLatency::put") << error;
    throw cms::Exception("InsertFailure");
  }

  // Store all the values in the vectors
  uint32_t detIdAndApv = (detId << 3) | apv;
  latIt pos = lower_bound(latencies_.begin(), latencies_.end(), detIdAndApv, OrderByDetIdAndApv());

  if( pos != latencies_.end() && pos->detIdAndApv == detIdAndApv ) {
    std::cout << "Value already inserted, skipping insertion" << std::endl;
    return false;
  }
  // std::cout << "Filling with: latency = " << latency << ", mode = " << mode << std::endl;
  latencies_.insert(pos, Latency(detIdAndApv, latency, mode));

  return true;
}

uint16_t SiStripLatency::singleLatency

(

)

const

If all the latency values stored are equal return that value, otherwise return -1.

Definition at line 78 of file SiStripLatency.cc.

References latencies_.

Referenced by printSummary().

{
  if( latencies_.size() == 1 ) {
    return latencies_[0].latency;
  }
  int differentLatenciesNum = 0;
  // Count the number of different latencies
  for( latConstIt it = latencies_.begin(); it != latencies_.end()-1; ++it ) {
    if( it->latency != (it+1)->latency ) {
      ++differentLatenciesNum;
    }
  }
  if( differentLatenciesNum == 0 ) {
    return latencies_[0].latency;
  }
  return 255;
}

uint16_t SiStripLatency::singleMode

(

)

const

Definition at line 96 of file SiStripLatency.cc.

References latencies_.

Referenced by singleReadOutMode().

{
  if( latencies_.size() == 1 ) {
    return latencies_[0].mode;
  }
  int differentModesNum = 0;
  // Count the number of different modes
  for( latConstIt it = latencies_.begin(); it != latencies_.end()-1; ++it ) {
    if( it->mode != (it+1)->mode ) {
      ++differentModesNum;
    }
  }
  if( differentModesNum == 0 ) {
    return latencies_[0].mode;
  }
  return 0;
}

int16_t SiStripLatency::singleReadOutMode

(

)

const

Definition at line 124 of file SiStripLatency.cc.

References allModes(), mode(), READMODEMASK, and singleMode().

Referenced by printSummary().

{
  uint16_t mode = singleMode();
  if(mode != 0 ) {
    if( (mode & READMODEMASK) == READMODEMASK ) return 1;
    if( (mode & READMODEMASK) == 0 ) return 0;
  }
  else {
    // If we are here the Tracker is not in single mode. Check if it is in single Read-out mode.
    bool allInPeakMode = true;
    bool allInDecoMode = true;
    std::vector<uint16_t> allModesVector;
    allModes(allModesVector);
    std::vector<uint16_t>::const_iterator it = allModesVector.begin();
    if (allModesVector.size() == 1 && allModesVector[0] == 0) allInPeakMode = false;
    else{
      for( ; it != allModesVector.end(); ++it ) {
    if( (*it) % 2 == 0 ) continue;
    if( ((*it) & READMODEMASK) == READMODEMASK ) allInDecoMode = false;
    if( ((*it) & READMODEMASK) == 0 ) allInPeakMode = false;
      }
    }
    if( allInPeakMode ) return 1;
    if( allInDecoMode ) return 0;
  }
  return -1;
}

Member Data Documentation

std::vector<Latency> SiStripLatency::latencies_

private

Definition at line 155 of file SiStripLatency.h.

Referenced by allLatencies(), allLatencyAndModes(), allModes(), allUniqueLatencyAndModes(), compress(), latency(), latencyAndMode(), mode(), position(), printDebug(), printSummary(), put(), singleLatency(), and singleMode().