inline
uint Matrix<M, N, Container>::getIndex(uint i, uint j) const
{
assert_lt(i, M);
assert_lt(j, N);
return i*N+j;
}
T& operator[](uint index)
{
assert_ge(index, 0);
assert_lt(index, 3);
return coords[index];
}
void dTensorBase::vset(int k, double value)
{
assert_ge(k,0); assert_lt(k,size);
#ifdef CHECK_INIT
if(!(value==value)) eprintf("for k=%d value=%24.16e",k,value);
#endif
vec[k]=value;
}
double& dTensorBase::vfetch(int k)
{
assert_ge(k,0); assert_lt(k,size);
#ifdef CHECK_INIT
if(!(vec[k]==vec[k])) eprintf("vec[%d]=%24.16e",k,vec[k]);
#endif
return vec[k];
}
DataPath DataPath::component(unsigned index) const {
auto& mgr = path.getNodeManager();
auto& ext = mgr.getLangExtension<lang::DatapathExtension>();
assert_true(getTargetType().isa<TupleTypePtr>()) << "Current target must be a tuple type!";
assert_lt(index, getTargetType().as<TupleTypePtr>().size());
auto elementType = getTargetType().as<TupleTypePtr>()[index];
IRBuilder builder(mgr);
return DataPath(builder.callExpr(ext.getDataPathComponent(), path, builder.uintLit(index), builder.getTypeLiteral(elementType)));
}
/**
* Sanity-check various pieces of the Ebwt
*/
void Ebwt::sanityCheckAll(int reverse) const {
const EbwtParams& eh = this->_eh;
assert(isInMemory());
// Check ftab
for(uint32_t i = 1; i < eh._ftabLen; i++) {
assert_geq(this->ftabHi(i), this->ftabLo(i-1));
assert_geq(this->ftabLo(i), this->ftabHi(i-1));
assert_leq(this->ftabHi(i), eh._bwtLen+1);
}
assert_eq(this->ftabHi(eh._ftabLen-1), eh._bwtLen);
// Check offs
int seenLen = (eh._bwtLen + 31) >> 5;
uint32_t *seen;
try {
seen = new uint32_t[seenLen]; // bitvector marking seen offsets
} catch(bad_alloc& e) {
cerr << "Out of memory allocating seen[] at " << __FILE__ << ":" << __LINE__ << endl;
throw e;
}
memset(seen, 0, 4 * seenLen);
uint32_t offsLen = eh._offsLen;
for(uint32_t i = 0; i < offsLen; i++) {
assert_lt(this->offs()[i], eh._bwtLen);
int w = this->offs()[i] >> 5;
int r = this->offs()[i] & 31;
assert_eq(0, (seen[w] >> r) & 1); // shouldn't have been seen before
seen[w] |= (1 << r);
}
delete[] seen;
// Check nPat
assert_gt(this->_nPat, 0);
// Check plen, flen
for(uint32_t i = 0; i < this->_nPat; i++) {
assert_geq(this->plen()[i], 0);
}
// Check rstarts
if(this->rstarts() != NULL) {
for(uint32_t i = 0; i < this->_nFrag-1; i++) {
assert_gt(this->rstarts()[(i+1)*3], this->rstarts()[i*3]);
if(reverse == REF_READ_REVERSE) {
assert(this->rstarts()[(i*3)+1] >= this->rstarts()[((i+1)*3)+1]);
} else {
assert(this->rstarts()[(i*3)+1] <= this->rstarts()[((i+1)*3)+1]);
}
}
}
// Check ebwt
sanityCheckUpToSide(eh._numSides);
VMSG_NL("Ebwt::sanityCheck passed");
}
const double& dTensorBase::vget(int k) const
{
assert_ge(k,0); assert_lt(k,size);
#ifdef CHECK_INIT
if(!(vec[k]==vec[k])) eprintf("vec[%d]=%24.16e",k,vec[k]);
// double ret = vec[k];
// assert_eq(ret,ret);
#endif
return vec[k];
}
double isolate_root_using_bisection(double& low, double& hgh, Polynomial *p)
{
double x0, p0;
int bisection_iterations=0;
double p_low = p->eval(low);
if(p_low < 0.){
Polynomial minus_p = -*p;
return isolate_root_using_bisection(low, hgh, &minus_p);
}
double p_hgh = p->eval(hgh);
assert_ge(p_low,0.);
assert_le(p_hgh,0.);
// for smaller intervals average is not necessarily
// strictly between endpoints of interval
double x_epsilon = 4*GSL_DBL_EPSILON;
double v_epsilon = 4*GSL_DBL_EPSILON;
bisect:
{
bisection_iterations++;
assert_lt(bisection_iterations,100);
x0 = 0.5*(low+hgh);
//dprint(x0);
p0 = p->eval(x0);
//dprint(p0);
//const double ap0 = fabs(p0);
//if(ap0<v_epsilon) goto done;
if(p0<0.){
hgh = x0;
//dprintf("low=%24.16e, hgh=%24.16e\n",low,hgh);
double interval_length = x0-low;
//dprint(interval_length);
if(interval_length<x_epsilon) goto done;
} else {
low = x0;
//dprintf("low=%24.16e, hgh=%24.16e\n",low,hgh);
double interval_length = hgh-x0;
//dprint(interval_length);
if(interval_length<x_epsilon) goto done;
if(p0<v_epsilon) goto done;
}
goto bisect;
}
done:
dprint(bisection_iterations);
//return x0;
return low;
}
/**
* Transform this Ebwt into the original string in linear time by using
* the LF mapping to walk backwards starting at the row correpsonding
* to the end of the string. The result is written to s. The Ebwt
* must be in memory.
*/
void Ebwt::restore(SString<char>& s) const {
assert(isInMemory());
s.resize(this->_eh._len);
uint32_t jumps = 0;
uint32_t i = this->_eh._len; // should point to final SA elt (starting with '$')
SideLocus l(i, this->_eh, this->ebwt());
while(i != _zOff) {
assert_lt(jumps, this->_eh._len);
//if(_verbose) cout << "restore: i: " << i << endl;
// Not a marked row; go back a char in the original string
uint32_t newi = mapLF(l ASSERT_ONLY(, false));
assert_neq(newi, i);
s[this->_eh._len - jumps - 1] = rowL(l);
i = newi;
l.initFromRow(i, this->_eh, this->ebwt());
jumps++;
}
assert_eq(jumps, this->_eh._len);
}
// evaluate at a point in the interval
bool eval(double x, Polynomial* p)
{
_pv.eval(x,p);
_num_evals++;
dprintf3("iter %d: value at x=%24.16e is %24.16e",_num_evals,x,_pv.v());
if(_num_evals > 30)
{
var_epsilon *= 2;
assert_lt(_num_evals,100); // pure bisection does better than this
}
if(_pv.a() < var_epsilon) _done=true;
//
// confirm that the point is in the interval
//assert_gt(x,low().x()); assert_lt(x,hgh().x());
if(x<=low().x())
{
dprintf("x=%24.16e falls below lower bound %24.16e",x,low().x());
return _done;
}
if(x>=hgh().x())
{
dprintf("x=%24.16e lands above upper bound %24.16e",x,hgh().x());
return _done;
}
if(_pv.v() > 0.)
{
low(_pv);
_using_hgh = false;
}
else
{
hgh(_pv);
_using_hgh = true;
}
return _done;
}
void iTensorBase::vset(int k, int value)
{
assert_ge(k,0); assert_lt(k,size);
vec[k]=value;
}
int& iTensorBase::vfetch(int k)
{
assert_ge(k,0); assert_lt(k,size);
return vec[k];
}
const int& iTensorBase::vget(int k) const
{
assert_ge(k,0); assert_lt(k,size);
return vec[k];
}
