uint16 NodeEeprom::readEeprom(uint16 location)
{
uint16 result;
bool canCacheEeprom = NodeEepromMap::canUseCache_read(location);
//if we want to pull from the cache
if(m_useCache && canCacheEeprom)
{
//attempt to read the value from the cache
if(readCache(location, result))
{
//the value was found in the cache, just return the result
return result;
}
}
//we didn't get a value from the cache
//attempt to read the value from the device
if(updateCacheFromDevice(location, canCacheEeprom))
{
//successfully read from the device, the cache has been updated so read from it
readCache(location, result);
return result;
}
//we failed to read the eeprom value from the cache or the device
throw Error_NodeCommunication(m_nodeAddress, "Failed to read EEPROM " + Utils::toStr(location) + " from Node " + Utils::toStr(m_nodeAddress));
}
void calculateTime(int size){
long length=size;
long indexAt8K=size/2;
unsigned t1 = 0;
unsigned t2 = 0;
unsigned t3 = 0;
int i =0;
for(i = 0;i < LOOPNUMBER;i++){
long cacheLength=pow(2,20)/4;// length = 16K
int *a ;
unsigned adj;
adj = 32 - ((unsigned)a%32);
a = a +adj;
a=(int *)malloc(sizeof(int)*cacheLength);
long j;
for(j=0;j<cacheLength;j++){
a[j]=0;
}
t1=readCache(a,0,indexAt8K);
t2=readCache(a,indexAt8K,length);
t3=readCache(a,0,indexAt8K);
printf("%10u %10u %10u\n", t1,t2,t3);
}
}
uint32_t ScomRegister::ForceRead() const
{
#define PRDF_FUNC "[ScomRegister::ForceRead] "
uint32_t o_rc = FAIL;
do
{
// No read allowed if register access attribute is write-only or no
// access.
if ( ( ACCESS_NONE == iv_operationType ) &&
( ACCESS_WO == iv_operationType ) )
{
PRDF_ERR( PRDF_FUNC"Write-only register: 0x%08x 0x%016llx",
getChip()->GetId(), iv_scomAddress );
break;
}
// Read hardware.
o_rc = Access( readCache(), MopRegisterAccess::READ );
if ( SUCCESS != o_rc )
{
// The read failed. Remove the entry from the cache so a subsequent
// Read() will attempt to read from hardware again.
flushCache( getChip() );
}
} while (0);
return o_rc;
#undef PRDF_FUNC
}
/**
* Retrieve the next token byte from the command buffer.
* Used to grab arguments for commands
*/
char CommandHandler::next() {
char next = 0;
if (isCacheAvailable()){
next = readCache();
}
return next;
}
bool NodeEeprom::determineReadWriteVersion()
{
uint8 originalVersion = m_readWriteVersion;
uint16 fwVersionEeprom = NodeEepromMap::FIRMWARE_VER.location();
uint16 fwValue = 0;
//check if the value is already in the cache
if(m_eepromCache.find(fwVersionEeprom) == m_eepromCache.end())
{
//value was not found in the cache
//set the version to 2
m_readWriteVersion = 2;
//try to read using v2
if(!updateCacheFromDevice(fwVersionEeprom))
{
//failed to read with version 2
//set the version to 1
m_readWriteVersion = 1;
//try to read using v1
if(!updateCacheFromDevice(fwVersionEeprom, false))
{
//failed to read with version 1
//set the read/write version back to its original value
m_readWriteVersion = originalVersion;
return false;
}
}
}
//if we got here, we successfully got the firmware version somewhere
//value was updated in the cache successfully, now read it out
readCache(fwVersionEeprom, fwValue);
//build the fw version currently found on the node
Version fwVersion(Utils::msb(fwValue), Utils::lsb(fwValue));
static const Version MIN_FW_EEPROM2(8, 21);
if(fwVersion >= MIN_FW_EEPROM2)
{
m_readWriteVersion = 2;
}
else
{
m_readWriteVersion = 1;
}
return true;
}
const BIT_STRING_CLASS * ScomRegister::GetBitString(ATTENTION_TYPE i_type) const
{
// Calling Read() will ensure that an entry exists in the cache and the
// entry has at been synched with hardware at least once. Note that we
// cannot read hardware for write-only registers. In this case, an entry
// will be created in the cache, if it does not exist, when readCache() is
// called below.
if ( ( ACCESS_NONE != iv_operationType ) &&
( ACCESS_WO != iv_operationType ) )
{
Read();
}
return &(readCache());
}
void NodeEeprom::writeEeprom(uint16 location, uint16 value)
{
//if we want to check the cache
if(m_useCache && NodeEepromMap::canUseCache_write(location))
{
//attempt to read the value from the cache
uint16 valInCache;
if(readCache(location, valInCache))
{
//if the value in the cache is the same we are trying to write
if(valInCache == value)
{
//do not need to write anything, just return
return;
}
}
}
//if we made it here, we want to actually write to the device
//if the read/write version is unknown
if(m_readWriteVersion == 0)
{
//try to determine the version of the read/write eeprom cmd
if(!determineReadWriteVersion())
{
//failed to get the read/write version
throw Error_NodeCommunication(m_nodeAddress, "Failed to write EEPROM " + Utils::toStr(location) + " to Node " + Utils::toStr(m_nodeAddress));
}
}
//attempt to write the value to the Node
if(m_baseStation.node_writeEeprom(m_readWriteVersion, m_nodeAddress, location, value))
{
//successfully wrote to the Node, update the cache
updateCache(location, value);
return;
}
//we failed to write the value to the Node
//clear the eeprom cache for this location if we have one, just to be safe
clearCacheLocation(location);
throw Error_NodeCommunication(m_nodeAddress, "Failed to write EEPROM " + Utils::toStr(location) + " to Node " + Utils::toStr(m_nodeAddress));
}
/**
* Process the buffer to find commands
*/
void CommandHandler::processCommands(){
while (isCacheAvailable()){
char command = readCache();
int commandSlot = findCommand(command);
// Command found; do the thing
if (commandSlot >= 0){
_commandList[commandSlot].function();
}
// Command not found; do the default thing
else{
(*defaultHandler)(command);
}
}
clearCache();
}
int main(void)
{
eLibrary_CLT_registerClient();
for (;;)
{
eLibrary_CLT_createRequest(str, &request);
cache_hit = readCache(request, &response);
if (false == cache_hit)
{
eLibrary_CLT_getResponse();
}
fillCache(response);
writeOutput();
freeResponse();
}
eLibrary_CLT_destroyClient();
}
uint32_t ScomRegister::Write()
{
#define PRDF_FUNC "[ScomRegister::Write] "
uint32_t o_rc = FAIL;
do
{
// No write allowed if register access attribute is read-only or no
// access.
if ( ( ACCESS_NONE == iv_operationType ) &&
( ACCESS_RO == iv_operationType ) )
{
PRDF_ERR( PRDF_FUNC"Read-only register: 0x%08x 0x%016llx",
getChip()->GetId(), iv_scomAddress );
break;
}
// Query the cache for an existing entry.
if ( !queryCache() )
{
// Something bad happened and there was nothing in the cache to
// write to hardware.
PRDF_ERR( PRDF_FUNC"No entry found in cache: 0x%08x 0x%016llx",
getChip()->GetId(), iv_scomAddress );
break;
}
// Write hardware.
o_rc = Access( readCache(), MopRegisterAccess::WRITE );
} while (0);
return o_rc;
#undef PRDF_FUNC
}
int
main (int argc, char** argv)
{
// const char trace = 0;
// const unsigned debug = 0;
const char *me = "main";
// parse and validate the command line options
struct paramsStruct params;
parseCommandLine(argc, argv, ¶ms);
// create results directory in ANALYSIS directory
// permissions are read, write for the owner
char resultsDirectoryName[256] = "";
makeResultsDirectory(resultsDirectoryName,
sizeof(resultsDirectoryName),
¶ms);
// start logging
char logFilePath[256] = "";
{
const int outputLength = snprintf(logFilePath,
sizeof(logFilePath),
"%s/run.log",
resultsDirectoryName);
if (outputLength > (int) sizeof(logFilePath)) {
fprintf(stderr, "%s: logFilePath too small", me);
exit(1);
}
}
Log_T log = Log_new(logFilePath, stderr);
// log the command line parameters
LOG(log,"started log file %s\n", logFilePath);
LOG(log,"params: algo=%s\n", params.algo);
LOG(log," : obs=%s\n", params.obs);
LOG(log," : radius=%d\n", params.radius);
LOG(log," : which=%s\n", params.which);
// check the command line parameters
assert(strcmp(params.algo, "knn") == 0);
assert(strcmp(params.obs, "1A") == 0);
// read the input files
const unsigned nObservations = 217376; // adjust of OBS != 1A
const unsigned nFeatures = 55;
double *apns = readCsvNoHeader(nObservations, "aps.csv");
double *dates = readCsvNoHeader(nObservations, "date.csv");
char *featuresHeaderP;
double *features = readFeatures(nObservations,
nFeatures,
&featuresHeaderP);
double *prices = readCsvNoHeader(nObservations, "SALE-AMOUNT-log.csv");
// convert dates to days past the epoch
unsigned dayStdColumn = 5; // the 6th column contains the standardized day value
assert(columnHeaderEqual(featuresHeaderP, dayStdColumn, "day-std"));
double *days = convertDatesToDays(nObservations, dates);
free(dates);
double mean;
double stdv;
determineMeanStdv(nObservations, days, &mean, &stdv);
double *daysStd = standardize(nObservations, days, mean, stdv);
replaceDay(nObservations, nFeatures, features, daysStd, dayStdColumn);
free(days);
free(daysStd);
// generate one set of estimates
FILE *resultFile;
{
char resultFilePath[256];
const int outputLength =
snprintf(resultFilePath,
sizeof(resultFilePath),
"%s/estimates-laufer.csv",
resultsDirectoryName);
if (outputLength > (int) sizeof(resultFilePath)) {
fprintf(stderr, "%s: resultFilePath too small", me);
exit(1);
}
LOG(log, " result file path: %s\n", resultFilePath);
resultFile = fopen(resultFilePath, "w");
}
assert(resultFile);
if (strcmp(params.which, "laufer"))
createLaufer(nObservations, nFeatures,
apns, dates, features, prices,
log,
resultFile);
else
assert(NULL != "logic error");
// OLD CODE BELOW THIS LINE
#if 0
double **pricesHatP = NULL;
if (params.useCache)
pricesHatP = readCache(nObservations, params.obs, log, kMax);
// determine estimated prices for any missing entries in the cache
// this operation could be fast or very slow
// MAYBE: write out cache periodically
const unsigned cacheMutated = completeCache(nObservations,
pricesHatP,
params.obs,
log,
kMax,
pricesP,
debug);
if (params.useCache && cacheMutated)
writeCache(nObservations, pricesHatP, params.obs, log, kMax);
// select which set of estimates to create
if (paramsP->whichIsLaufer)
createEstimatesLaufer(nObservations, nFeatures,
features, dates, prices);
else
assert(false); // should never get here
// pricesHatP[i][k] is
// the estimate priced of transaction indexed i for k nearest neighbors
// for each value of k, determine RMSE overall all the test transactions
// determine kArgMin, the k providing the lowest RMSE
// write CSV containing <k, rmse> values
char resultFilePath[256];
{
const int outputLength =
snprintf(resultFilePath,
sizeof(resultFilePath),
"%s/k-rmse.csv",
directoryName);
if (outputLength > (int) sizeof(resultFilePath)) {
fprintf(stderr, "%s: resultFilePath too small", me);
exit(1);
}
LOG(log, " result file path: %s\n", resultFilePath);
}
FILE *resultFile = fopen(resultFilePath, "w");
assert(resultFile);
// log best k for random sample of test observations
bestK(0.01, nObservations, pricesHatP, pricesP, log, kMax);
// write CSV header
fprintf(resultFile, "k,rmse\n");
unsigned kArgMin = 0;
double lowestRMSE = DBL_MAX;
for (unsigned hpK = 0; hpK < kMax; hpK++) {
// determine rmse for this k
const double rmse = determineRmse(nObservations, pricesHatP, pricesP, hpK);
// check if we have a new best k
LOG(log, "hpK %u rmse %f\n", hpK + 1, rmse);
fprintf(resultFile, "%u,%f\n", hpK + 1, rmse);
if (rmse < lowestRMSE) {
lowestRMSE = rmse;
kArgMin = hpK;
}
}
#endif
//
LOG(log, "%s\n", "finished");
exit(0);
}