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Classes | Public Types | Public Member Functions | Private Member Functions | Private Attributes

SiStripPedestals Class Reference

#include <SiStripPedestals.h>

List of all members.

Classes

struct  DetRegistry
class  StrictWeakOrdering

Public Types

typedef std::vector< char > Container
typedef std::vector< char >
::const_iterator 
ContainerIterator
typedef std::vector< uint16_t > InputVector
typedef std::pair
< ContainerIterator,
ContainerIterator
Range
typedef std::vector< DetRegistryRegistry
typedef Registry::const_iterator RegistryIterator

Public Member Functions

void allPeds (std::vector< int > &pefs, const Range &range) const
ContainerIterator getDataVectorBegin () const
ContainerIterator getDataVectorEnd () const
void getDetIds (std::vector< uint32_t > &DetIds_) const
float getPed (const uint16_t &strip, const Range &range) const
const Range getRange (const uint32_t &detID) const
RegistryIterator getRegistryVectorBegin () const
RegistryIterator getRegistryVectorEnd () const
void printDebug (std::stringstream &ss) const
 Prints all pedestals.
void printSummary (std::stringstream &ss) const
 Prints mean pedestal value divided for subdet, layer and mono/stereo.
bool put (const uint32_t &detID, InputVector &input)
void setData (float ped, InputVector &vped)
 SiStripPedestals ()
 ~SiStripPedestals ()

Private Member Functions

uint16_t decode (const uint16_t &strip, const Range &range) const
void encode (InputVector &Vi, std::vector< unsigned char > &Vo_CHAR)
uint16_t get10bits (const uint8_t *&ptr, int8_t skip) const

Private Attributes

Registry indexes
Container v_pedestals

Detailed Description

Stores the pedestal of every strip.
Encodes the information in a vector<char> and uses a vector<DetRegistry> to connect each range of values to the corresponding detId.
The DetRegistry struct contains the detId and two uint32_t giving the index of begin and end of the corresponding range in the vector<char>.
Has methods to return the pedestal of a given strip of of all the strips.

The printSummary method uses SiStripDetSummary. See description therein.
The printDebug method prints the pedestal value for every strip of every detId.

Definition at line 25 of file SiStripPedestals.h.


Member Typedef Documentation

typedef std::vector<char> SiStripPedestals::Container

Definition at line 46 of file SiStripPedestals.h.

typedef std::vector<char>::const_iterator SiStripPedestals::ContainerIterator

Definition at line 47 of file SiStripPedestals.h.

typedef std::vector<uint16_t> SiStripPedestals::InputVector

Definition at line 51 of file SiStripPedestals.h.

Definition at line 48 of file SiStripPedestals.h.

Definition at line 49 of file SiStripPedestals.h.

typedef Registry::const_iterator SiStripPedestals::RegistryIterator

Definition at line 50 of file SiStripPedestals.h.


Constructor & Destructor Documentation

SiStripPedestals::SiStripPedestals ( ) [inline]

Definition at line 53 of file SiStripPedestals.h.

{};
SiStripPedestals::~SiStripPedestals ( ) [inline]

Definition at line 54 of file SiStripPedestals.h.

{};

Member Function Documentation

void SiStripPedestals::allPeds ( std::vector< int > &  pefs,
const Range range 
) const

Definition at line 142 of file SiStripPedestals.cc.

References Exception, get10bits(), dbtoconf::out, and findQualityFiles::size.

                                                                              {
    size_t mysize  = ((range.second-range.first) << 3) / 10;
    size_t size = peds.size();
    if (mysize < size) throw cms::Exception("CorruptedData") 
            << "[SiStripPedestals::allPeds] Requested pedestals for " << peds.size() << " strips, I have it only for " << mysize << " strips\n";
    size_t size4 = size & (~0x3), carry = size & 0x3; // we have an optimized way of unpacking 4 strips
    const uint8_t *ptr = reinterpret_cast<const uint8_t *>(&*range.second) - 1;
    std::vector<int>::iterator out = peds.begin(), end4 = peds.begin() + size4;
    // we do it this baroque way instead of just loopin on all the strips because it's faster
    // as the value of 'skip' is a constant, so the compiler can compute the masks directly
   while (out < end4) {
        *out = static_cast<int> ( get10bits(ptr, 0) ); ++out;
        *out = static_cast<int> ( get10bits(ptr, 2) ); ++out;
        *out = static_cast<int> ( get10bits(ptr, 4) ); ++out;
        *out = static_cast<int> ( get10bits(ptr, 6) ); ++out;
        --ptr; // every 4 strips we have to skip one more bit
    } 
    for (size_t rem = 0; rem < carry; ++rem ) {
        *out = static_cast<int> ( get10bits(ptr, 2*rem) ); ++out;
    }
}
uint16_t SiStripPedestals::decode ( const uint16_t &  strip,
const Range range 
) const [private]

Definition at line 100 of file SiStripPedestals.cc.

References runTheMatrix::data, and relativeConstraints::value.

Referenced by getPed().

                                                                                 {
  const char *data = &*(range.second -1);  // pointer to the last byte of data
  static const uint16_t BITS_PER_STRIP = 10;

  uint32_t lowBit        = strip * BITS_PER_STRIP;
  uint8_t firstByteBit   = (lowBit & 6);//module 
  uint8_t firstByteNBits = 8 - firstByteBit;
  uint8_t firstByteMask  = 0xffu << firstByteBit;
  uint8_t secondByteMask = ~(0xffu << (BITS_PER_STRIP - firstByteNBits));
  uint16_t value         =   ((uint16_t(*(data-lowBit/8  )) & firstByteMask) >> firstByteBit) | ((uint16_t(*(data-lowBit/8-1)) & secondByteMask) << firstByteNBits);
  
  /*
    if(strip  < 25){
    std::cout       << "***************DECODE*********************"<<"\n"
    << "strip "<<strip << " " 
    << value 
    <<"\t   :"<<print_as_binary(value) 
    <<"\t  :"<<print_as_binary(    ((uint16_t(*(data-lowBit/8  )) & firstByteMask) >>   firstByteBit)       )
    << "-"<<print_as_binary(  ((uint16_t(*(data-lowBit/8-1)) & secondByteMask) <<firstByteNBits)    )
    << "\t *(data-lowBit/8) " << print_as_binary(    *(data-lowBit/8 ))
    << "\t *(data-lowBit/8-1) " << print_as_binary(    *(data-lowBit/8 -1 ))
    << "\tlowBit:"<< lowBit
    << "\tfirstByteMask :"<<print_as_binary(firstByteMask)
    << "\tsecondByteMask:"<<print_as_binary(secondByteMask)
    << "\tfirstByteBit:"<<print_as_binary(firstByteBit)
    << std::endl;
    }
  */
  return value;
}
void SiStripPedestals::encode ( InputVector Vi,
std::vector< unsigned char > &  Vo_CHAR 
) [private]

Definition at line 59 of file SiStripPedestals.cc.

References runTheMatrix::data, and i.

Referenced by put().

                                                                          {
  static const uint16_t  BITS_PER_STRIP  = 10;
  const size_t           VoSize          = (size_t)((Vi.size() *       BITS_PER_STRIP)/8+.999);
  Vo.resize(VoSize);
  for(size_t i = 0; i<Vo.size(); ++i)
    Vo[i]   &=      0x00u;
  
  for(unsigned int stripIndex =0; stripIndex<Vi.size(); ++stripIndex){
    unsigned char*  data    =       &Vo[Vo.size()-1];
    uint32_t lowBit         =       stripIndex * BITS_PER_STRIP;
    uint8_t firstByteBit    =       (lowBit & 0x6);
    uint8_t firstByteNBits  =       8 - firstByteBit;
    uint8_t firstByteMask   =       0xffu << firstByteBit;
    uint8_t secondByteNbits =       (BITS_PER_STRIP - firstByteNBits);
    uint8_t secondByteMask  =       ~(0xffu << secondByteNbits);

    *(data-lowBit/8)        =       (*(data-lowBit/8)   & ~(firstByteMask))         | ((Vi[stripIndex] & 0xffu) <<firstByteBit);
    *(data-lowBit/8-1)      =       (*(data-lowBit/8-1) & ~(secondByteMask))        | ((Vi[stripIndex] >> firstByteNBits) & secondByteMask);

    /*
      if(stripIndex   < 25 ){
      std::cout       << "***************ENCODE*********************"<<std::endl
      << "\tdata-lowBit/8     :"<<print_as_binary((*(data-lowBit/8)   & ~(firstByteMask)))
      << "-"<<print_as_binary(((Vi[stripIndex] & 0xffu) <<firstByteBit))
      << "\tdata-lowBit/8-1   :"<<print_as_binary((*(data-lowBit/8-1)   & ~(secondByteMask)))
      << "-"<<print_as_binary((((Vi[stripIndex]>> firstByteNBits) & secondByteMask)))
      << std::endl;
      std::cout       << "strip "<<stripIndex<<"\tvi: " << Vi[stripIndex] <<"\t"
      << print_short_as_binary(Vi[stripIndex])
      << "\tvo1:"<< print_char_as_binary(*(data-lowBit/8))
      << "\tvo2:"<< print_char_as_binary(*(data-lowBit/8-1))
      << "\tlowBit:"<< lowBit
      << "\tfirstByteMask :"<<print_as_binary(firstByteMask)
      << "\tsecondByteMask:"<<print_as_binary(secondByteMask)
      << "\tfirstByteBit:"<<print_as_binary(firstByteBit)
      << std::endl;
      }
    */
  }
}
uint16_t SiStripPedestals::get10bits ( const uint8_t *&  ptr,
int8_t  skip 
) const [inline, private]

Get 9 bit words from a bit stream, starting from the right, skipping the first 'skip' bits (0 < skip < 7). Ptr must point to the rightmost byte that has some bits of this word, and is updated by this function

Definition at line 133 of file SiStripPedestals.cc.

References runTheMatrix::ret, and createPayload::skip.

Referenced by allPeds().

                                                                                   {
    uint8_t maskThis = (0xFF << skip);
    uint8_t maskThat = ((4 << skip) - 1);
    uint16_t ret = ( ((*ptr) & maskThis) >> skip );
    --ptr;
    return ret | ( ((*ptr) & maskThat) << (8 - skip) );
}
ContainerIterator SiStripPedestals::getDataVectorBegin ( ) const [inline]

Definition at line 61 of file SiStripPedestals.h.

References v_pedestals.

{return v_pedestals.begin();}
ContainerIterator SiStripPedestals::getDataVectorEnd ( ) const [inline]

Definition at line 62 of file SiStripPedestals.h.

References v_pedestals.

{return v_pedestals.end();}
void SiStripPedestals::getDetIds ( std::vector< uint32_t > &  DetIds_) const

Definition at line 37 of file SiStripPedestals.cc.

References begin, end, indexes, and L1TEmulatorMonitor_cff::p.

Referenced by printDebug(), and printSummary().

                                                                   {
  // returns vector of DetIds in map
  SiStripPedestals::RegistryIterator begin = indexes.begin();
  SiStripPedestals::RegistryIterator end   = indexes.end();
  for (SiStripPedestals::RegistryIterator p=begin; p != end; ++p) {
    DetIds_.push_back(p->detid);
  }
}
float SiStripPedestals::getPed ( const uint16_t &  strip,
const Range range 
) const

Definition at line 51 of file SiStripPedestals.cc.

References decode(), Exception, and strip().

Referenced by printDebug(), and printSummary().

                                                                              {
  if (10*strip>=(range.second-range.first)*8){
    throw cms::Exception("CorruptedData")
      << "[SiStripPedestals::getPed] looking for SiStripPedestals for a strip out of range: strip " << strip;
  }
  return   static_cast<float> (decode(strip,range));
}
const SiStripPedestals::Range SiStripPedestals::getRange ( const uint32_t &  detID) const

Definition at line 27 of file SiStripPedestals.cc.

References indexes, L1TEmulatorMonitor_cff::p, and v_pedestals.

Referenced by printDebug(), and printSummary().

                                                                                  {
  // get SiStripPedestals Range of DetId

  RegistryIterator p = std::lower_bound(indexes.begin(),indexes.end(),DetId,SiStripPedestals::StrictWeakOrdering());
  if (p==indexes.end()|| p->detid!=DetId) 
    return SiStripPedestals::Range(v_pedestals.end(),v_pedestals.end()); 
  else 
    return SiStripPedestals::Range(v_pedestals.begin()+p->ibegin,v_pedestals.begin()+p->iend);
}
RegistryIterator SiStripPedestals::getRegistryVectorBegin ( ) const [inline]

Definition at line 63 of file SiStripPedestals.h.

References indexes.

{return indexes.begin();}
RegistryIterator SiStripPedestals::getRegistryVectorEnd ( ) const [inline]

Definition at line 64 of file SiStripPedestals.h.

References indexes.

{return indexes.end();}
void SiStripPedestals::printDebug ( std::stringstream &  ss) const

Prints all pedestals.

Definition at line 180 of file SiStripPedestals.cc.

References cond::rpcobgas::detid, getDetIds(), getPed(), getRange(), and strip().

{
  std::vector<uint32_t> detid;
  getDetIds(detid);

  ss << "Number of detids = " << detid.size() << std::endl;

  for( size_t id = 0; id < detid.size(); ++id ) {
    SiStripPedestals::Range range = getRange(detid[id]);

    int strip = 0;
    ss << "detid" << std::setw(15) << "strip" << std::setw(10) << "pedestal" << std::endl;
    int detId = 0;
    int oldDetId = 0;
    for( int it=0; it < (range.second-range.first)*8/10; ++it ){
      detId = detid[id];
      if( detId != oldDetId ) {
        oldDetId = detId;
        ss << detid[id];
      }
      else ss << "   ";
      ss << std::setw(15) << strip++ << std::setw(10) << getPed(it,range) << std::endl;
    }
  }
}
void SiStripPedestals::printSummary ( std::stringstream &  ss) const

Prints mean pedestal value divided for subdet, layer and mono/stereo.

Definition at line 164 of file SiStripPedestals.cc.

References SiStripDetSummary::add(), cond::rpcobgas::detid, getDetIds(), getPed(), getRange(), SiStripDetSummary::print(), and summarizeEdmComparisonLogfiles::summary.

{
  std::vector<uint32_t> detid;
  getDetIds(detid);
  SiStripDetSummary summary;
  for( size_t id = 0; id < detid.size(); ++id ) {
    SiStripPedestals::Range range = getRange(detid[id]);
    for( int it=0; it < (range.second-range.first)*8/10; ++it ){
      summary.add( detid[id], getPed(it,range) );
    }
  }
  ss << "Summary of pedestals:" << std::endl;
  summary.print(ss);
}
bool SiStripPedestals::put ( const uint32_t &  detID,
InputVector input 
)

Definition at line 5 of file SiStripPedestals.cc.

References SiStripPedestals::DetRegistry::detid, encode(), SiStripPedestals::DetRegistry::ibegin, SiStripPedestals::DetRegistry::iend, indexes, L1TEmulatorMonitor_cff::p, and v_pedestals.

Referenced by SiStripPedestalsBuilder::analyze(), SiStripPedestalsGenerator::createObject(), SiStripPedestalsDQMService::readPedestals(), and SiStripCondObjBuilderFromDb::storePedestals().

                                                                    {
  // put in SiStripPedestals of DetId
  std::vector<unsigned char>      Vo_CHAR;
  encode(input, Vo_CHAR);

  Registry::iterator p = std::lower_bound(indexes.begin(),indexes.end(),DetId,SiStripPedestals::StrictWeakOrdering());
  if (p!=indexes.end() && p->detid==DetId)
    return false;

  //size_t sd= input.second-input.first;
  size_t sd= Vo_CHAR.end() - Vo_CHAR.begin();
  DetRegistry detregistry;
  detregistry.detid=DetId;
  detregistry.ibegin=v_pedestals.size();
  detregistry.iend=v_pedestals.size()+sd;
  indexes.insert(p,detregistry);

  //v_pedestals.insert(v_pedestals.end(),input.first,input.second);
  v_pedestals.insert(v_pedestals.end(),Vo_CHAR.begin(),Vo_CHAR.end());
  return true;
}
void SiStripPedestals::setData ( float  ped,
SiStripPedestals::InputVector vped 
)

Member Data Documentation

Definition at line 81 of file SiStripPedestals.h.

Referenced by getDataVectorBegin(), getDataVectorEnd(), getRange(), and put().