/* -----------------------------------------------------------------------------
Evaluate a THUNK_SELECTOR if possible.
p points to a THUNK_SELECTOR that we want to evaluate. The
result of "evaluating" it will be evacuated and a pointer to the
to-space closure will be returned.
If the THUNK_SELECTOR could not be evaluated (its selectee is still
a THUNK, for example), then the THUNK_SELECTOR itself will be
evacuated.
-------------------------------------------------------------------------- */
static void
unchain_thunk_selectors(StgSelector *p, StgClosure *val)
{
StgSelector *prev;
prev = NULL;
while (p)
{
ASSERT(p->header.info == &stg_WHITEHOLE_info);
// val must be in to-space. Not always: when we recursively
// invoke eval_thunk_selector(), the recursive calls will not
// evacuate the value (because we want to select on the value,
// not evacuate it), so in this case val is in from-space.
// ASSERT(!HEAP_ALLOCED_GC(val) || Bdescr((P_)val)->gen_no > N || (Bdescr((P_)val)->flags & BF_EVACUATED));
prev = (StgSelector*)((StgClosure *)p)->payload[0];
// Update the THUNK_SELECTOR with an indirection to the
// value. The value is still in from-space at this stage.
//
// (old note: Why not do upd_evacuee(q,p)? Because we have an
// invariant that an EVACUATED closure always points to an
// object in the same or an older generation (required by
// the short-cut test in the EVACUATED case, below).
if ((StgClosure *)p == val) {
// must be a loop; just leave a BLACKHOLE in place. This
// can happen when we have a chain of selectors that
// eventually loops back on itself. We can't leave an
// indirection pointing to itself, and we want the program
// to deadlock if it ever enters this closure, so
// BLACKHOLE is correct.
// XXX we do not have BLACKHOLEs any more; replace with
// a THUNK_SELECTOR again. This will go into a loop if it is
// entered, and should result in a NonTermination exception.
((StgThunk *)p)->payload[0] = val;
write_barrier();
SET_INFO((StgClosure *)p, &stg_sel_0_upd_info);
} else {
((StgInd *)p)->indirectee = val;
write_barrier();
SET_INFO((StgClosure *)p, &stg_IND_info);
}
// For the purposes of LDV profiling, we have created an
// indirection.
LDV_RECORD_CREATE(p);
p = prev;
}
}
void
revertCAFs( void )
{
StgIndStatic *c;
for (c = revertible_caf_list;
c != (StgIndStatic *)END_OF_STATIC_LIST;
c = (StgIndStatic *)c->static_link)
{
SET_INFO((StgClosure *)c, c->saved_info);
c->saved_info = NULL;
// could, but not necessary: c->static_link = NULL;
}
revertible_caf_list = (StgIndStatic*)END_OF_STATIC_LIST;
}
STATIC_INLINE StgInd *
lockCAF (StgRegTable *reg, StgIndStatic *caf)
{
const StgInfoTable *orig_info;
Capability *cap = regTableToCapability(reg);
StgInd *bh;
orig_info = caf->header.info;
#ifdef THREADED_RTS
const StgInfoTable *cur_info;
if (orig_info == &stg_IND_STATIC_info ||
orig_info == &stg_WHITEHOLE_info) {
// already claimed by another thread; re-enter the CAF
return NULL;
}
cur_info = (const StgInfoTable *)
cas((StgVolatilePtr)&caf->header.info,
(StgWord)orig_info,
(StgWord)&stg_WHITEHOLE_info);
if (cur_info != orig_info) {
// already claimed by another thread; re-enter the CAF
return NULL;
}
// successfully claimed by us; overwrite with IND_STATIC
#endif
// For the benefit of revertCAFs(), save the original info pointer
caf->saved_info = orig_info;
// Allocate the blackhole indirection closure
bh = (StgInd *)allocate(cap, sizeofW(*bh));
SET_HDR(bh, &stg_CAF_BLACKHOLE_info, caf->header.prof.ccs);
bh->indirectee = (StgClosure *)cap->r.rCurrentTSO;
caf->indirectee = (StgClosure *)bh;
write_barrier();
SET_INFO((StgClosure*)caf,&stg_IND_STATIC_info);
return bh;
}
/**
* \brief handles the supported <track> sub-elements
*/
static bool add_meta( input_item_t *p_input_item, track_elem_t *p_track )
{
/* exit if setting is impossible */
if( !p_input_item || !p_track )
return false;
#define SET_INFO( type, prop ) \
if( p_track->prop ) {input_item_Set##type( p_input_item, p_track->prop );}
SET_INFO( Title, name )
SET_INFO( Artist, artist )
SET_INFO( Album, album )
SET_INFO( Genre, genre )
SET_INFO( TrackNum, trackNum )
SET_INFO( Duration, duration )
#undef SET_INFO
return true;
}
STATIC_INLINE StgWord lockCAF (StgClosure *caf, StgClosure *bh)
{
const StgInfoTable *orig_info;
orig_info = caf->header.info;
#ifdef THREADED_RTS
const StgInfoTable *cur_info;
if (orig_info == &stg_IND_STATIC_info ||
orig_info == &stg_WHITEHOLE_info) {
// already claimed by another thread; re-enter the CAF
return 0;
}
cur_info = (const StgInfoTable *)
cas((StgVolatilePtr)&caf->header.info,
(StgWord)orig_info,
(StgWord)&stg_WHITEHOLE_info);
if (cur_info != orig_info) {
// already claimed by another thread; re-enter the CAF
return 0;
}
// successfully claimed by us; overwrite with IND_STATIC
#endif
// For the benefit of revertCAFs(), save the original info pointer
((StgIndStatic *)caf)->saved_info = orig_info;
((StgIndStatic*)caf)->indirectee = bh;
write_barrier();
SET_INFO(caf,&stg_IND_STATIC_info);
return 1;
}
/* -----------------------------------------------------------------------------
* Pausing a thread
*
* We have to prepare for GC - this means doing lazy black holing
* here. We also take the opportunity to do stack squeezing if it's
* turned on.
* -------------------------------------------------------------------------- */
void
threadPaused(Capability *cap, StgTSO *tso)
{
StgClosure *frame;
const StgRetInfoTable *info;
const StgInfoTable *bh_info;
const StgInfoTable *cur_bh_info USED_IF_THREADS;
StgClosure *bh;
StgPtr stack_end;
uint32_t words_to_squeeze = 0;
uint32_t weight = 0;
uint32_t weight_pending = 0;
bool prev_was_update_frame = false;
StgWord heuristic_says_squeeze;
// Check to see whether we have threads waiting to raise
// exceptions, and we're not blocking exceptions, or are blocked
// interruptibly. This is important; if a thread is running with
// TSO_BLOCKEX and becomes blocked interruptibly, this is the only
// place we ensure that the blocked_exceptions get a chance.
maybePerformBlockedException (cap, tso);
if (tso->what_next == ThreadKilled) { return; }
// NB. Updatable thunks *must* be blackholed, either by eager blackholing or
// lazy blackholing. See Note [upd-black-hole] in sm/Scav.c.
stack_end = tso->stackobj->stack + tso->stackobj->stack_size;
frame = (StgClosure *)tso->stackobj->sp;
while ((P_)frame < stack_end) {
info = get_ret_itbl(frame);
switch (info->i.type) {
case UPDATE_FRAME:
// If we've already marked this frame, then stop here.
if (frame->header.info == (StgInfoTable *)&stg_marked_upd_frame_info) {
if (prev_was_update_frame) {
words_to_squeeze += sizeofW(StgUpdateFrame);
weight += weight_pending;
weight_pending = 0;
}
goto end;
}
SET_INFO(frame, (StgInfoTable *)&stg_marked_upd_frame_info);
bh = ((StgUpdateFrame *)frame)->updatee;
bh_info = bh->header.info;
#if defined(THREADED_RTS)
retry:
#endif
// Note [suspend duplicate work]
//
// If the info table is a WHITEHOLE or a BLACKHOLE, then
// another thread has claimed it (via the SET_INFO()
// below), or is in the process of doing so. In that case
// we want to suspend the work that the current thread has
// done on this thunk and wait until the other thread has
// finished.
//
// If eager blackholing is taking place, it could be the
// case that the blackhole points to the current
// TSO. e.g.:
//
// this thread other thread
// --------------------------------------------------------
// c->indirectee = other_tso;
// c->header.info = EAGER_BH
// threadPaused():
// c->header.info = WHITEHOLE
// c->indirectee = other_tso
// c->indirectee = this_tso;
// c->header.info = EAGER_BH
// c->header.info = BLACKHOLE
// threadPaused()
// *** c->header.info is now BLACKHOLE,
// c->indirectee points to this_tso
//
// So in this case do *not* suspend the work of the
// current thread, because the current thread will become
// deadlocked on itself. See #5226 for an instance of
// this bug.
//
// Note that great care is required when entering computations
// suspended by this mechanism. See Note [AP_STACKs must be eagerly
// blackholed] for details.
if (((bh_info == &stg_BLACKHOLE_info)
&& ((StgInd*)bh)->indirectee != (StgClosure*)tso)
|| (bh_info == &stg_WHITEHOLE_info))
{
debugTrace(DEBUG_squeeze,
"suspending duplicate work: %ld words of stack",
(long)((StgPtr)frame - tso->stackobj->sp));
// If this closure is already an indirection, then
// suspend the computation up to this point.
// NB. check raiseAsync() to see what happens when
// we're in a loop (#2783).
suspendComputation(cap,tso,(StgUpdateFrame*)frame);
// Now drop the update frame, and arrange to return
// the value to the frame underneath:
tso->stackobj->sp = (StgPtr)frame + sizeofW(StgUpdateFrame) - 2;
tso->stackobj->sp[1] = (StgWord)bh;
ASSERT(bh->header.info != &stg_TSO_info);
tso->stackobj->sp[0] = (W_)&stg_enter_info;
// And continue with threadPaused; there might be
// yet more computation to suspend.
frame = (StgClosure *)(tso->stackobj->sp + 2);
prev_was_update_frame = false;
continue;
}
// We should never have made it here in the event of blackholes that
// we already own; they should have been marked when we blackholed
// them and consequently we should have stopped our stack walk
// above.
ASSERT(!((bh_info == &stg_BLACKHOLE_info)
&& (((StgInd*)bh)->indirectee == (StgClosure*)tso)));
// zero out the slop so that the sanity checker can tell
// where the next closure is.
OVERWRITING_CLOSURE(bh);
// an EAGER_BLACKHOLE or CAF_BLACKHOLE gets turned into a
// BLACKHOLE here.
#if defined(THREADED_RTS)
// first we turn it into a WHITEHOLE to claim it, and if
// successful we write our TSO and then the BLACKHOLE info pointer.
cur_bh_info = (const StgInfoTable *)
cas((StgVolatilePtr)&bh->header.info,
(StgWord)bh_info,
(StgWord)&stg_WHITEHOLE_info);
if (cur_bh_info != bh_info) {
bh_info = cur_bh_info;
goto retry;
}
#endif
// The payload of the BLACKHOLE points to the TSO
((StgInd *)bh)->indirectee = (StgClosure *)tso;
write_barrier();
SET_INFO(bh,&stg_BLACKHOLE_info);
// .. and we need a write barrier, since we just mutated the closure:
recordClosureMutated(cap,bh);
// We pretend that bh has just been created.
LDV_RECORD_CREATE(bh);
frame = (StgClosure *) ((StgUpdateFrame *)frame + 1);
if (prev_was_update_frame) {
words_to_squeeze += sizeofW(StgUpdateFrame);
weight += weight_pending;
weight_pending = 0;
}
prev_was_update_frame = true;
break;
case UNDERFLOW_FRAME:
case STOP_FRAME:
goto end;
// normal stack frames; do nothing except advance the pointer
default:
{
uint32_t frame_size = stack_frame_sizeW(frame);
weight_pending += frame_size;
frame = (StgClosure *)((StgPtr)frame + frame_size);
prev_was_update_frame = false;
}
}
}
end:
// Should we squeeze or not? Arbitrary heuristic: we squeeze if
// the number of words we have to shift down is less than the
// number of stack words we squeeze away by doing so.
// The threshold was bumped from 5 to 8 as a result of #2797
heuristic_says_squeeze = ((weight <= 8 && words_to_squeeze > 0)
|| weight < words_to_squeeze);
debugTrace(DEBUG_squeeze,
"words_to_squeeze: %d, weight: %d, squeeze: %s",
words_to_squeeze, weight,
heuristic_says_squeeze ? "YES" : "NO");
if (RtsFlags.GcFlags.squeezeUpdFrames == true &&
heuristic_says_squeeze) {
stackSqueeze(cap, tso, (StgPtr)frame);
tso->flags |= TSO_SQUEEZED;
// This flag tells threadStackOverflow() that the stack was
// squeezed, because it may not need to be expanded.
} else {
tso->flags &= ~TSO_SQUEEZED;
}
}
void iluk_seq(Euclid_dh ctx)
{
START_FUNC_DH
HYPRE_Int *rp, *cval, *diag;
HYPRE_Int *CVAL;
HYPRE_Int i, j, len, count, col, idx = 0;
HYPRE_Int *list, *marker, *fill, *tmpFill;
HYPRE_Int temp, m, from = ctx->from, to = ctx->to;
HYPRE_Int *n2o_row, *o2n_col, beg_row, beg_rowP;
double *AVAL;
REAL_DH *work, *aval;
Factor_dh F = ctx->F;
SubdomainGraph_dh sg = ctx->sg;
bool debug = false;
if (logFile != NULL && Parser_dhHasSwitch(parser_dh, "-debug_ilu")) debug = true;
m = F->m;
rp = F->rp;
cval = F->cval;
fill = F->fill;
diag = F->diag;
aval = F->aval;
work = ctx->work;
count = rp[from];
if (sg == NULL) {
SET_V_ERROR("subdomain graph is NULL");
}
n2o_row = ctx->sg->n2o_row;
o2n_col = ctx->sg->o2n_col;
beg_row = ctx->sg->beg_row[myid_dh];
beg_rowP = ctx->sg->beg_rowP[myid_dh];
/* allocate and initialize working space */
list = (HYPRE_Int*)MALLOC_DH((m+1)*sizeof(HYPRE_Int)); CHECK_V_ERROR;
marker = (HYPRE_Int*)MALLOC_DH(m*sizeof(HYPRE_Int)); CHECK_V_ERROR;
tmpFill = (HYPRE_Int*)MALLOC_DH(m*sizeof(HYPRE_Int)); CHECK_V_ERROR;
for (i=0; i<m; ++i) marker[i] = -1;
/* working space for values */
for (i=0; i<m; ++i) work[i] = 0.0;
/* printf_dh("====================== starting iluk_seq; level= %i\n\n", ctx->level);
*/
/*---------- main loop ----------*/
for (i=from; i<to; ++i) {
HYPRE_Int row = n2o_row[i]; /* local row number */
HYPRE_Int globalRow = row+beg_row; /* global row number */
/*hypre_fprintf(logFile, "--------------------------------- localRow= %i\n", 1+i);
*/
if (debug) {
hypre_fprintf(logFile, "ILU_seq ================================= starting local row: %i, (global= %i) level= %i\n", i+1, i+1+sg->beg_rowP[myid_dh], ctx->level);
}
EuclidGetRow(ctx->A, globalRow, &len, &CVAL, &AVAL); CHECK_V_ERROR;
/* compute scaling value for row(i) */
if (ctx->isScaled) {
compute_scaling_private(i, len, AVAL, ctx); CHECK_V_ERROR;
}
/* Compute symbolic factor for row(i);
this also performs sparsification
*/
count = symbolic_row_private(i, list, marker, tmpFill,
len, CVAL, AVAL,
o2n_col, ctx, debug); CHECK_V_ERROR;
/* Ensure adequate storage; reallocate, if necessary. */
if (idx + count > F->alloc) {
Factor_dhReallocate(F, idx, count); CHECK_V_ERROR;
SET_INFO("REALLOCATED from ilu_seq");
cval = F->cval;
fill = F->fill;
aval = F->aval;
}
/* Copy factored symbolic row to permanent storage */
col = list[m];
while (count--) {
cval[idx] = col;
fill[idx] = tmpFill[col];
++idx;
/*hypre_fprintf(logFile, " col= %i\n", 1+col);
*/
col = list[col];
}
/* add row-pointer to start of next row. */
rp[i+1] = idx;
/* Insert pointer to diagonal */
temp = rp[i];
while (cval[temp] != i) ++temp;
diag[i] = temp;
/*hypre_fprintf(logFile, " diag[i]= %i\n", diag);
*/
/* compute numeric factor for current row */
numeric_row_private(i, len, CVAL, AVAL,
work, o2n_col, ctx, debug); CHECK_V_ERROR
EuclidRestoreRow(ctx->A, globalRow, &len, &CVAL, &AVAL); CHECK_V_ERROR;
/* Copy factored numeric row to permanent storage,
and re-zero work vector
*/
if (debug) {
hypre_fprintf(logFile, "ILU_seq: ");
for (j=rp[i]; j<rp[i+1]; ++j) {
col = cval[j];
aval[j] = work[col];
work[col] = 0.0;
hypre_fprintf(logFile, "%i,%i,%g ; ", 1+cval[j], fill[j], aval[j]);
fflush(logFile);
}
hypre_fprintf(logFile, "\n");
} else {
for (j=rp[i]; j<rp[i+1]; ++j) {
col = cval[j];
aval[j] = work[col];
work[col] = 0.0;
}
}
/* check for zero diagonal */
if (! aval[diag[i]]) {
hypre_sprintf(msgBuf_dh, "zero diagonal in local row %i", i+1);
SET_V_ERROR(msgBuf_dh);
}
}
FREE_DH(list); CHECK_V_ERROR;
FREE_DH(tmpFill); CHECK_V_ERROR;
FREE_DH(marker); CHECK_V_ERROR;
/* adjust column indices back to global */
if (beg_rowP) {
HYPRE_Int start = rp[from];
HYPRE_Int stop = rp[to];
for (i=start; i<stop; ++i) cval[i] += beg_rowP;
}
/* for debugging: this is so the Print methods will work, even if
F hasn't been fully factored
*/
for (i=to+1; i<m; ++i) rp[i] = 0;
END_FUNC_DH
}
void ilut_seq(Euclid_dh ctx)
{
START_FUNC_DH
HYPRE_Int *rp, *cval, *diag, *CVAL;
HYPRE_Int i, len, count, col, idx = 0;
HYPRE_Int *list, *marker;
HYPRE_Int temp, m, from, to;
HYPRE_Int *n2o_row, *o2n_col, beg_row, beg_rowP;
double *AVAL, droptol;
REAL_DH *work, *aval, val;
Factor_dh F = ctx->F;
SubdomainGraph_dh sg = ctx->sg;
bool debug = false;
if (logFile != NULL && Parser_dhHasSwitch(parser_dh, "-debug_ilu")) debug = true;
m = F->m;
rp = F->rp;
cval = F->cval;
diag = F->diag;
aval = F->aval;
work = ctx->work;
from = ctx->from;
to = ctx->to;
count = rp[from];
droptol = ctx->droptol;
if (sg == NULL) {
SET_V_ERROR("subdomain graph is NULL");
}
n2o_row = ctx->sg->n2o_row;
o2n_col = ctx->sg->o2n_col;
beg_row = ctx->sg->beg_row[myid_dh];
beg_rowP = ctx->sg->beg_rowP[myid_dh];
/* allocate and initialize working space */
list = (HYPRE_Int*)MALLOC_DH((m+1)*sizeof(HYPRE_Int)); CHECK_V_ERROR;
marker = (HYPRE_Int*)MALLOC_DH(m*sizeof(HYPRE_Int)); CHECK_V_ERROR;
for (i=0; i<m; ++i) marker[i] = -1;
rp[0] = 0;
/* working space for values */
for (i=0; i<m; ++i) work[i] = 0.0;
/* ----- main loop start ----- */
for (i=from; i<to; ++i) {
HYPRE_Int row = n2o_row[i]; /* local row number */
HYPRE_Int globalRow = row + beg_row; /* global row number */
EuclidGetRow(ctx->A, globalRow, &len, &CVAL, &AVAL); CHECK_V_ERROR;
/* compute scaling value for row(i) */
compute_scaling_private(i, len, AVAL, ctx); CHECK_V_ERROR;
/* compute factor for row i */
count = ilut_row_private(i, list, o2n_col, marker,
len, CVAL, AVAL, work, ctx, debug); CHECK_V_ERROR;
EuclidRestoreRow(ctx->A, globalRow, &len, &CVAL, &AVAL); CHECK_V_ERROR;
/* Ensure adequate storage; reallocate, if necessary. */
if (idx + count > F->alloc) {
Factor_dhReallocate(F, idx, count); CHECK_V_ERROR;
SET_INFO("REALLOCATED from ilu_seq");
cval = F->cval;
aval = F->aval;
}
/* Copy factored row to permanent storage,
apply 2nd drop test,
and re-zero work vector
*/
col = list[m];
while (count--) {
val = work[col];
if (col == i || fabs(val) > droptol) {
cval[idx] = col;
aval[idx++] = val;
work[col] = 0.0;
}
col = list[col];
}
/* add row-pointer to start of next row. */
rp[i+1] = idx;
/* Insert pointer to diagonal */
temp = rp[i];
while (cval[temp] != i) ++temp;
diag[i] = temp;
/* check for zero diagonal */
if (! aval[diag[i]]) {
hypre_sprintf(msgBuf_dh, "zero diagonal in local row %i", i+1);
SET_V_ERROR(msgBuf_dh);
}
} /* --------- main loop end --------- */
/* adjust column indices back to global */
if (beg_rowP) {
HYPRE_Int start = rp[from];
HYPRE_Int stop = rp[to];
for (i=start; i<stop; ++i) cval[i] += beg_rowP;
}
FREE_DH(list);
FREE_DH(marker);
END_FUNC_DH
}
void iluk_seq_block(Euclid_dh ctx)
{
START_FUNC_DH
HYPRE_Int *rp, *cval, *diag;
HYPRE_Int *CVAL;
HYPRE_Int h, i, j, len, count, col, idx = 0;
HYPRE_Int *list, *marker, *fill, *tmpFill;
HYPRE_Int temp, m;
HYPRE_Int *n2o_row, *o2n_col, *beg_rowP, *n2o_sub, blocks;
HYPRE_Int *row_count, *dummy = NULL, dummy2[1];
double *AVAL;
REAL_DH *work, *aval;
Factor_dh F = ctx->F;
SubdomainGraph_dh sg = ctx->sg;
bool bj = false, constrained = false;
HYPRE_Int discard = 0;
HYPRE_Int gr = -1; /* globalRow */
bool debug = false;
if (logFile != NULL && Parser_dhHasSwitch(parser_dh, "-debug_ilu")) debug = true;
/*hypre_fprintf(stderr, "====================== starting iluk_seq_block; level= %i\n\n", ctx->level);
*/
if (!strcmp(ctx->algo_par, "bj")) bj = true;
constrained = ! Parser_dhHasSwitch(parser_dh, "-unconstrained");
m = F->m;
rp = F->rp;
cval = F->cval;
fill = F->fill;
diag = F->diag;
aval = F->aval;
work = ctx->work;
if (sg != NULL) {
n2o_row = sg->n2o_row;
o2n_col = sg->o2n_col;
row_count = sg->row_count;
/* beg_row = sg->beg_row ; */
beg_rowP = sg->beg_rowP;
n2o_sub = sg->n2o_sub;
blocks = sg->blocks;
}
else {
dummy = (HYPRE_Int*)MALLOC_DH(m*sizeof(HYPRE_Int)); CHECK_V_ERROR;
for (i=0; i<m; ++i) dummy[i] = i;
n2o_row = dummy;
o2n_col = dummy;
dummy2[0] = m; row_count = dummy2;
/* beg_row = 0; */
beg_rowP = dummy;
n2o_sub = dummy;
blocks = 1;
}
/* allocate and initialize working space */
list = (HYPRE_Int*)MALLOC_DH((m+1)*sizeof(HYPRE_Int)); CHECK_V_ERROR;
marker = (HYPRE_Int*)MALLOC_DH(m*sizeof(HYPRE_Int)); CHECK_V_ERROR;
tmpFill = (HYPRE_Int*)MALLOC_DH(m*sizeof(HYPRE_Int)); CHECK_V_ERROR;
for (i=0; i<m; ++i) marker[i] = -1;
/* working space for values */
for (i=0; i<m; ++i) work[i] = 0.0;
/*---------- main loop ----------*/
for (h=0; h<blocks; ++h) {
/* 1st and last row in current block, with respect to A */
HYPRE_Int curBlock = n2o_sub[h];
HYPRE_Int first_row = beg_rowP[curBlock];
HYPRE_Int end_row = first_row + row_count[curBlock];
if (debug) {
hypre_fprintf(logFile, "\n\nILU_seq BLOCK: %i @@@@@@@@@@@@@@@ \n", curBlock);
}
for (i=first_row; i<end_row; ++i) {
HYPRE_Int row = n2o_row[i];
++gr;
if (debug) {
hypre_fprintf(logFile, "ILU_seq global: %i local: %i =================================\n", 1+gr, 1+i-first_row);
}
/*prinft("first_row= %i end_row= %i\n", first_row, end_row);
*/
EuclidGetRow(ctx->A, row, &len, &CVAL, &AVAL); CHECK_V_ERROR;
/* compute scaling value for row(i) */
if (ctx->isScaled) {
compute_scaling_private(i, len, AVAL, ctx); CHECK_V_ERROR;
}
/* Compute symbolic factor for row(i);
this also performs sparsification
*/
count = symbolic_row_private(i, list, marker, tmpFill,
len, CVAL, AVAL,
o2n_col, ctx, debug); CHECK_V_ERROR;
/* Ensure adequate storage; reallocate, if necessary. */
if (idx + count > F->alloc) {
Factor_dhReallocate(F, idx, count); CHECK_V_ERROR;
SET_INFO("REALLOCATED from ilu_seq");
cval = F->cval;
fill = F->fill;
aval = F->aval;
}
/* Copy factored symbolic row to permanent storage */
col = list[m];
while (count--) {
/* constrained pilu */
if (constrained && !bj) {
if (col >= first_row && col < end_row) {
cval[idx] = col;
fill[idx] = tmpFill[col];
++idx;
} else {
if (check_constraint_private(ctx, curBlock, col)) {
cval[idx] = col;
fill[idx] = tmpFill[col];
++idx;
} else {
++discard;
}
}
col = list[col];
}
/* block jacobi case */
else if (bj) {
if (col >= first_row && col < end_row) {
cval[idx] = col;
fill[idx] = tmpFill[col];
++idx;
} else {
++discard;
}
col = list[col];
}
/* general case */
else {
cval[idx] = col;
fill[idx] = tmpFill[col];
++idx;
col = list[col];
}
}
/* add row-pointer to start of next row. */
rp[i+1] = idx;
/* Insert pointer to diagonal */
temp = rp[i];
while (cval[temp] != i) ++temp;
diag[i] = temp;
/* compute numeric factor for current row */
numeric_row_private(i, len, CVAL, AVAL,
work, o2n_col, ctx, debug); CHECK_V_ERROR
EuclidRestoreRow(ctx->A, row, &len, &CVAL, &AVAL); CHECK_V_ERROR;
/* Copy factored numeric row to permanent storage,
and re-zero work vector
*/
if (debug) {
hypre_fprintf(logFile, "ILU_seq: ");
for (j=rp[i]; j<rp[i+1]; ++j) {
col = cval[j];
aval[j] = work[col];
work[col] = 0.0;
hypre_fprintf(logFile, "%i,%i,%g ; ", 1+cval[j], fill[j], aval[j]);
}
hypre_fprintf(logFile, "\n");
}
/* normal operation */
else {
for (j=rp[i]; j<rp[i+1]; ++j) {
col = cval[j];
aval[j] = work[col];
work[col] = 0.0;
}
}
/* check for zero diagonal */
if (! aval[diag[i]]) {
hypre_sprintf(msgBuf_dh, "zero diagonal in local row %i", i+1);
SET_V_ERROR(msgBuf_dh);
}
}
}
/* hypre_printf("bj= %i constrained= %i discarded= %i\n", bj, constrained, discard); */
if (dummy != NULL) { FREE_DH(dummy); CHECK_V_ERROR; }
FREE_DH(list); CHECK_V_ERROR;
FREE_DH(tmpFill); CHECK_V_ERROR;
FREE_DH(marker); CHECK_V_ERROR;
END_FUNC_DH
}
static void
data_generic_set_type_info(TDSCOLUMN * col, struct _drecord *drec, SQLINTEGER odbc_ver)
{
TDS_SERVER_TYPE col_type = col->on_server.column_type;
int col_size = col->on_server.column_size;
switch (tds_get_conversion_type(col_type, col_size)) {
case XSYBNCHAR:
drec->sql_desc_concise_type = SQL_WCHAR;
drec->sql_desc_display_size = col->on_server.column_size / 2;
SET_INFO2("nchar", "'", "'", col->on_server.column_size / 2);
case XSYBCHAR:
case SYBCHAR:
drec->sql_desc_concise_type = SQL_CHAR;
drec->sql_desc_display_size = col->on_server.column_size;
SET_INFO("char", "'", "'");
/* TODO really sure ?? SYBNVARCHAR sybase only ?? */
case SYBNVARCHAR:
case XSYBNVARCHAR:
drec->sql_desc_concise_type = SQL_WVARCHAR;
drec->sql_desc_display_size = col->on_server.column_size / 2;
drec->sql_desc_length = col->on_server.column_size / 2u;
if (is_blob_col(col)) {
drec->sql_desc_display_size = SQL_SS_LENGTH_UNLIMITED;
drec->sql_desc_octet_length = drec->sql_desc_length =
SQL_SS_LENGTH_UNLIMITED;
}
SET_INFO("nvarchar", "'", "'");
case XSYBVARCHAR:
case SYBVARCHAR:
drec->sql_desc_concise_type = SQL_VARCHAR;
drec->sql_desc_display_size = col->on_server.column_size;
if (is_blob_col(col)) {
drec->sql_desc_display_size = SQL_SS_LENGTH_UNLIMITED;
drec->sql_desc_octet_length = drec->sql_desc_length =
SQL_SS_LENGTH_UNLIMITED;
}
SET_INFO("varchar", "'", "'");
case SYBNTEXT:
drec->sql_desc_concise_type = SQL_WLONGVARCHAR;
drec->sql_desc_display_size = col->on_server.column_size / 2;
SET_INFO2("ntext", "'", "'", col->on_server.column_size / 2);
case SYBTEXT:
drec->sql_desc_concise_type = SQL_LONGVARCHAR;
drec->sql_desc_display_size = col->on_server.column_size;
SET_INFO("text", "'", "'");
case SYBBIT:
case SYBBITN:
drec->sql_desc_concise_type = SQL_BIT;
drec->sql_desc_display_size = 1;
drec->sql_desc_unsigned = SQL_TRUE;
SET_INFO2("bit", "", "", 1);
#if (ODBCVER >= 0x0300)
case SYB5INT8:
case SYBINT8:
/* TODO return numeric for odbc2 and convert bigint to numeric */
drec->sql_desc_concise_type = SQL_BIGINT;
drec->sql_desc_display_size = 20;
SET_INFO2("bigint", "", "", 19);
#endif
case SYBINT4:
drec->sql_desc_concise_type = SQL_INTEGER;
drec->sql_desc_display_size = 11; /* -1000000000 */
SET_INFO2("int", "", "", 10);
case SYBINT2:
drec->sql_desc_concise_type = SQL_SMALLINT;
drec->sql_desc_display_size = 6; /* -10000 */
SET_INFO2("smallint", "", "", 5);
case SYBUINT1:
case SYBINT1:
drec->sql_desc_unsigned = SQL_TRUE;
case SYBSINT1: /* TODO not another type_name ?? */
drec->sql_desc_concise_type = SQL_TINYINT;
drec->sql_desc_display_size = 3; /* 255 */
SET_INFO2("tinyint", "", "", 3);
#if (ODBCVER >= 0x0300)
case SYBUINT8:
drec->sql_desc_unsigned = SQL_TRUE;
drec->sql_desc_concise_type = SQL_BIGINT;
drec->sql_desc_display_size = 20;
/* TODO return numeric for odbc2 and convert bigint to numeric */
SET_INFO2("unsigned bigint", "", "", 20);
#endif
case SYBUINT4:
drec->sql_desc_unsigned = SQL_TRUE;
drec->sql_desc_concise_type = SQL_INTEGER;
drec->sql_desc_display_size = 10;
SET_INFO2("unsigned int", "", "", 10);
case SYBUINT2:
drec->sql_desc_unsigned = SQL_TRUE;
drec->sql_desc_concise_type = SQL_SMALLINT;
drec->sql_desc_display_size = 5; /* 65535 */
SET_INFO2("unsigned smallint", "", "", 5);
case SYBREAL:
drec->sql_desc_concise_type = SQL_REAL;
drec->sql_desc_display_size = 14;
SET_INFO2("real", "", "", odbc_ver == SQL_OV_ODBC3 ? 24 : 7);
case SYBFLT8:
drec->sql_desc_concise_type = SQL_DOUBLE;
drec->sql_desc_display_size = 24; /* FIXME -- what should the correct size be? */
SET_INFO2("float", "", "", odbc_ver == SQL_OV_ODBC3 ? 53 : 15);
case SYBMONEY:
/* TODO check money format returned by propretary ODBC, scale == 4 but we use 2 digits */
drec->sql_desc_concise_type = SQL_DECIMAL;
drec->sql_desc_octet_length = 21;
drec->sql_desc_display_size = 21;
drec->sql_desc_precision = 19;
drec->sql_desc_scale = 4;
SET_INFO2("money", "$", "", 19);
case SYBMONEY4:
drec->sql_desc_concise_type = SQL_DECIMAL;
drec->sql_desc_octet_length = 12;
drec->sql_desc_display_size = 12;
drec->sql_desc_precision = 10;
drec->sql_desc_scale = 4;
SET_INFO2("money", "$", "", 10);
case SYBDATETIME:
drec->sql_desc_concise_type = SQL_TYPE_TIMESTAMP;
drec->sql_desc_display_size = 23;
drec->sql_desc_octet_length = sizeof(TIMESTAMP_STRUCT);
drec->sql_desc_precision = 3;
drec->sql_desc_scale = 3;
drec->sql_desc_datetime_interval_code = SQL_CODE_TIMESTAMP;
SET_INFO2("datetime", "'", "'", 23);
case SYBDATETIME4:
drec->sql_desc_concise_type = SQL_TYPE_TIMESTAMP;
/* TODO dependent on precision (decimal second digits) */
/* we always format using yyyy-mm-dd hh:mm:ss[.fff], see convert_tds2sql.c */
drec->sql_desc_display_size = 19;
drec->sql_desc_octet_length = sizeof(TIMESTAMP_STRUCT);
drec->sql_desc_datetime_interval_code = SQL_CODE_TIMESTAMP;
SET_INFO2("datetime", "'", "'", 16);
/* The following two types are just Sybase types but as mainly our ODBC
* driver is much more compatible with Windows use attributes similar
* to MS one. For instance Sybase ODBC returns TIME into a TIME_STRUCT
* however this truncate the precision to 0 as TIME does not have
* fraction of seconds. Also Sybase ODBC have different concepts for
* PRECISION for many types and making these 2 types compatibles with
* Sybase would break this driver compatibility.
*/
case SYBTIME:
drec->sql_desc_concise_type = SQL_SS_TIME2;
drec->sql_desc_octet_length = sizeof(SQL_SS_TIME2_STRUCT);
/* we always format using hh:mm:ss[.fff], see convert_tds2sql.c */
drec->sql_desc_display_size = 12;
drec->sql_desc_precision = 3;
drec->sql_desc_scale = 3;
SET_INFO2("time", "'", "'", 12);
case SYBDATE:
drec->sql_desc_octet_length = sizeof(DATE_STRUCT);
drec->sql_desc_concise_type = SQL_TYPE_DATE;
/* we always format using yyyy-mm-dd, see convert_tds2sql.c */
drec->sql_desc_display_size = 10;
SET_INFO2("date", "'", "'", 10);
case XSYBBINARY:
case SYBBINARY:
drec->sql_desc_concise_type = SQL_BINARY;
drec->sql_desc_display_size = col->column_size * 2;
/* handle TIMESTAMP using usertype */
if (col->column_usertype == 80)
SET_INFO("timestamp", "0x", "");
SET_INFO("binary", "0x", "");
case SYBLONGBINARY:
case SYBIMAGE:
drec->sql_desc_concise_type = SQL_LONGVARBINARY;
drec->sql_desc_display_size = col->column_size * 2;
SET_INFO("image", "0x", "");
case XSYBVARBINARY:
case SYBVARBINARY:
drec->sql_desc_concise_type = SQL_VARBINARY;
drec->sql_desc_display_size = col->column_size * 2;
if (is_blob_col(col)) {
drec->sql_desc_display_size = SQL_SS_LENGTH_UNLIMITED;
drec->sql_desc_octet_length = drec->sql_desc_length =
SQL_SS_LENGTH_UNLIMITED;
}
SET_INFO("varbinary", "0x", "");
case SYBINTN:
case SYBDATETIMN:
case SYBFLTN:
case SYBMONEYN:
case SYBUINTN:
case SYBTIMEN:
case SYBDATEN:
assert(0);
case SYBVOID:
case SYBINTERVAL:
case SYBUNITEXT:
case SYBXML:
case SYBMSUDT:
break;
#if (ODBCVER >= 0x0300)
case SYBUNIQUE:
#ifdef SQL_GUID
drec->sql_desc_concise_type = SQL_GUID;
#else
drec->sql_desc_concise_type = SQL_CHAR;
#endif
drec->sql_desc_display_size = 36;
/* FIXME for Sybase ?? */
SET_INFO2("uniqueidentifier", "'", "'", 36);
#endif
case SYBMSXML:
drec->sql_desc_concise_type = SQL_SS_XML;
drec->sql_desc_display_size = SQL_SS_LENGTH_UNLIMITED;
drec->sql_desc_octet_length = drec->sql_desc_length =
SQL_SS_LENGTH_UNLIMITED;
SET_INFO("xml", "'", "'");
/* types already handled in other types, just to silent warnings */
case SYBNUMERIC:
case SYBDECIMAL:
case SYBVARIANT:
case SYBMSDATE:
case SYBMSTIME:
case SYBMSDATETIME2:
case SYBMSDATETIMEOFFSET:
case SYB5BIGDATETIME:
case SYB5BIGTIME:
break;
}
SET_INFO("", "", "");
}
void bicgstab_euclid(Mat_dh A, Euclid_dh ctx, double *x, double *b, HYPRE_Int *itsOUT)
{
START_FUNC_DH
HYPRE_Int its, m = ctx->m;
bool monitor;
HYPRE_Int maxIts = ctx->maxIts;
double atol = ctx->atol, rtol = ctx->rtol;
/* scalars */
double alpha, alpha_1,
beta_1,
widget, widget_1,
rho_1, rho_2,
s_norm, eps,
exit_a, b_iprod, r_iprod;
/* vectors */
double *t, *s, *s_hat, *v, *p, *p_hat, *r, *r_hat;
monitor = Parser_dhHasSwitch(parser_dh, "-monitor");
/* allocate working space */
t = (double*)MALLOC_DH(m*sizeof(double));
s = (double*)MALLOC_DH(m*sizeof(double));
s_hat = (double*)MALLOC_DH(m*sizeof(double));
v = (double*)MALLOC_DH(m*sizeof(double));
p = (double*)MALLOC_DH(m*sizeof(double));
p_hat = (double*)MALLOC_DH(m*sizeof(double));
r = (double*)MALLOC_DH(m*sizeof(double));
r_hat = (double*)MALLOC_DH(m*sizeof(double));
/* r = b - Ax */
Mat_dhMatVec(A, x, s); /* s = Ax */
CopyVec(m, b, r); /* r = b */
Axpy(m, -1.0, s, r); /* r = b-Ax */
CopyVec(m, r, r_hat); /* r_hat = r */
/* compute stopping criteria */
b_iprod = InnerProd(m, b, b); CHECK_V_ERROR;
exit_a = atol*atol*b_iprod; CHECK_V_ERROR; /* absolute stopping criteria */
eps = rtol*rtol*b_iprod; /* relative stoping criteria (residual reduction) */
its = 0;
while(1) {
++its;
rho_1 = InnerProd(m, r_hat, r);
if (rho_1 == 0) {
SET_V_ERROR("(r_hat . r) = 0; method fails");
}
if (its == 1) {
CopyVec(m, r, p); /* p = r_0 */ CHECK_V_ERROR;
} else {
beta_1 = (rho_1/rho_2)*(alpha_1/widget_1);
/* p_i = r_(i-1) + beta_(i-1)*( p_(i-1) - w_(i-1)*v_(i-1) ) */
Axpy(m, -widget_1, v, p); CHECK_V_ERROR;
ScaleVec(m, beta_1, p); CHECK_V_ERROR;
Axpy(m, 1.0, r, p); CHECK_V_ERROR;
}
/* solve M*p_hat = p_i */
Euclid_dhApply(ctx, p, p_hat); CHECK_V_ERROR;
/* v_i = A*p_hat */
Mat_dhMatVec(A, p_hat, v); CHECK_V_ERROR;
/* alpha_i = rho_(i-1) / (r_hat^T . v_i ) */
{ double tmp = InnerProd(m, r_hat, v); CHECK_V_ERROR;
alpha = rho_1/tmp;
}
/* s = r_(i-1) - alpha_i*v_i */
CopyVec(m, r, s); CHECK_V_ERROR;
Axpy(m, -alpha, v, s); CHECK_V_ERROR;
/* check norm of s; if small enough:
* set x_i = x_(i-1) + alpha_i*p_i and stop.
* (Actually, we use the square of the norm)
*/
s_norm = InnerProd(m, s, s);
if (s_norm < exit_a) {
SET_INFO("reached absolute stopping criteria");
break;
}
/* solve M*s_hat = s */
Euclid_dhApply(ctx, s, s_hat); CHECK_V_ERROR;
/* t = A*s_hat */
Mat_dhMatVec(A, s_hat, t); CHECK_V_ERROR;
/* w_i = (t . s)/(t . t) */
{ double tmp1, tmp2;
tmp1 = InnerProd(m, t, s); CHECK_V_ERROR;
tmp2 = InnerProd(m, t, t); CHECK_V_ERROR;
widget = tmp1/tmp2;
}
/* x_i = x_(i-1) + alpha_i*p_hat + w_i*s_hat */
Axpy(m, alpha, p_hat, x); CHECK_V_ERROR;
Axpy(m, widget, s_hat, x); CHECK_V_ERROR;
/* r_i = s - w_i*t */
CopyVec(m, s, r); CHECK_V_ERROR;
Axpy(m, -widget, t, r); CHECK_V_ERROR;
/* check convergence; continue if necessary;
* for continuation it is necessary thea w != 0.
*/
r_iprod = InnerProd(m, r, r); CHECK_V_ERROR;
if (r_iprod < eps) {
SET_INFO("stipulated residual reduction achieved");
break;
}
/* monitor convergence */
if (monitor && myid_dh == 0) {
hypre_fprintf(stderr, "[it = %i] %e\n", its, sqrt(r_iprod/b_iprod));
}
/* prepare for next iteration */
rho_2 = rho_1;
widget_1 = widget;
alpha_1 = alpha;
if (its >= maxIts) {
its = -its;
break;
}
}
*itsOUT = its;
FREE_DH(t);
FREE_DH(s);
FREE_DH(s_hat);
FREE_DH(v);
FREE_DH(p);
FREE_DH(p_hat);
FREE_DH(r);
FREE_DH(r_hat);
END_FUNC_DH
}
int
main (int argc, char** argv)
{
char *kfile, *tfile, *cfile, *tafile, *lfile;
size_t ksize, tsize, iter, depth;
// FILE *kout, *tout;
char opt;
graph_t **gtrain; int* target;
FILE* fileTrain, *fileResult, *fileTarget;
core_t core;
gtrain = NULL;
lfile = tafile = cfile = kfile = NULL;
depth = 3;
CLEAR_FLAGS();
SET_RUNNABLE();
ksize = tsize = 0;
core = TanimotoCore;
while((opt = getopt(argc, argv, "mvihd:k:t:c:a:l:")) != -1) {
switch(opt){
case 'v':
SET_VERBOSE();
break;
case 'i':
SET_INFO();
break;
case 'd':
depth = strtol((const char*) optarg, 0, 10);
break;
case 'k':
SET_K_FILE();
kfile = optarg;
break;
case 't':
SET_T_FILE();
tfile = optarg;
break;
case 'c':
SET_C_FILE();
cfile = optarg;
break;
case 'a':
SET_TA_FILE();
tafile = optarg;
break;
case 'l':
SET_L_FILE();
lfile = optarg;
break;
case 'h':
SET_HELP();
break;
case 'm':
SET_PROVA_MINMAX();
break;
default:
SET_HELP();
}
}
if(HELP()) {
usage();
CLEAR_FLAGS();
}
if(INFO()) {
info();
CLEAR_FLAGS();
}
if(optind < argc) {
if(!strcmp(argv[optind], "tanimoto")) {
printf("tanimoto kernel\n");
} else if(!strcmp(argv[optind], "minmax")) {
printf("minmax kernel\n");
core = MinMaxCore;
} else
printf("unavailable core ...\ndefault core: tanimoto\n");
} //else
//printf("default core: tanimoto\n");
if(RUNNABLE()) {
if(K_FILE() && T_FILE()) {
if((fileTrain = fopen(kfile, "r")) && (fileTarget = fopen(tfile, "r"))) {
gtrain = parse(fileTrain, &ksize);
fclose(fileTrain);
target=parseTarget(fileTarget, ksize);
fclose(fileTarget);
if(target==0)
printf("\ncheck training file and target file");
else
FoldCrossValidation(core, gtrain, target, ksize, depth);
for(iter = 0; iter < ksize; iter++)
free_graph(gtrain[iter]);
XFREE(gtrain);
XFREE(target);
}else fatal("unable to open training file");
}
if(TA_FILE() && C_FILE()) {
fileResult = fopen(cfile, "r");
fileTarget = fopen(tafile, "r");
printf("\nAccuratezza: %f\n", getAccuracy(fileTarget, fileResult));
fclose(fileResult);
fclose(fileTarget);
}
/*
if(L_FILE()) {
file = fopen(lfile, "r");
printf("\nLeaveOneOut: %f\n", getLeaveOneOut(file));
fclose(file);
}
*/
if(K_FILE() && !T_FILE()) {
if((fileTrain = fopen(kfile, "r"))) {
gtrain = parse(fileTrain, &ksize);
fclose(fileTrain);
print_graph(gtrain[0]);
print_graph(gtrain[1]);
if(gtrain==0)
printf("\ncheck training file");
else
WriteKernelMatrix(core, gtrain, ksize, depth);
for(iter = 0; iter < ksize; iter++)
free_graph(gtrain[iter]);
XFREE(gtrain);
}else fatal("unable to open training file");
}
if(PROVA_MINMAX()) {
printf("\nPROVA MIN MAX\n");
fileTrain = fopen("./minmax.mol2", "r");
gtrain = parse(fileTrain, &ksize);
//print_graph(gtrain[0]);
//print_graph(gtrain[1]);
print_graph(gtrain[0]);
print_graph(gtrain[1]);
printf("\nMinMax: %f", MinMaxCore(gtrain[0], gtrain[1], 3));
//printf("\nTanimoto: %f", TanimotoCore(gtrain[0], gtrain[1], 3));
fclose(fileTrain);
}
} //else usage();
return EXIT_SUCCESS;
}
void generateBlocked(MatGenFD mg, HYPRE_Int *rp, HYPRE_Int *cval, double *aval, Mat_dh A, Vec_dh b)
{
START_FUNC_DH
bool applyBdry = true;
double *stencil = mg->stencil;
HYPRE_Int id = mg->id;
bool threeD = mg->threeD;
HYPRE_Int px = mg->px, py = mg->py, pz = mg->pz; /* processor grid dimensions */
HYPRE_Int p, q, r; /* this proc's position in processor grid */
HYPRE_Int cc = mg->cc; /* local grid dimension (grid of unknowns) */
HYPRE_Int nx = cc, ny = cc, nz = cc;
HYPRE_Int lowerx, upperx, lowery, uppery, lowerz, upperz;
HYPRE_Int startRow;
HYPRE_Int x, y, z;
bool debug = false;
HYPRE_Int idx = 0, localRow = 0; /* nabor; */
HYPRE_Int naborx1, naborx2, nabory1, nabory2, naborz1, naborz2;
double *rhs;
double hhalf = 0.5 * mg->hh;
double bcx1 = mg->bcX1;
double bcx2 = mg->bcX2;
double bcy1 = mg->bcY1;
double bcy2 = mg->bcY2;
/* double bcz1 = mg->bcZ1; */
/* double bcz2 = mg->bcZ2; */
Vec_dhInit(b, A->m); CHECK_V_ERROR;
rhs = b->vals;
if (mg->debug && logFile != NULL) debug = true;
if (! threeD) nz = 1;
/* compute p,q,r from P,Q,R and myid */
p = id % px;
q = (( id - p)/px) % py;
r = ( id - p - px*q)/( px*py );
if (debug) {
hypre_sprintf(msgBuf_dh, "this proc's position in subdomain grid: p= %i q= %i r= %i", p,q,r);
SET_INFO(msgBuf_dh);
}
/* compute ilower and iupper from p,q,r and nx,ny,nz */
/* zero-based */
lowerx = nx*p;
upperx = lowerx + nx;
lowery = ny*q;
uppery = lowery + ny;
lowerz = nz*r;
upperz = lowerz + nz;
if (debug) {
hypre_sprintf(msgBuf_dh, "local grid parameters: lowerx= %i upperx= %i", lowerx, upperx);
SET_INFO(msgBuf_dh);
hypre_sprintf(msgBuf_dh, "local grid parameters: lowery= %i uppery= %i", lowery, uppery);
SET_INFO(msgBuf_dh);
hypre_sprintf(msgBuf_dh, "local grid parameters: lowerz= %i upperz= %i", lowerz, upperz);
SET_INFO(msgBuf_dh);
}
startRow = mg->first;
rp[0] = 0;
for (z=lowerz; z<upperz; z++) {
for (y=lowery; y<uppery; y++) {
for (x=lowerx; x<upperx; x++) {
if (debug) {
hypre_fprintf(logFile, "row= %i x= %i y= %i z= %i\n", localRow+startRow+1, x, y, z);
}
/* compute row values and rhs, at the current node */
getstencil(mg,x,y,z);
/* down plane */
if (threeD) {
if (z > 0) {
naborz1 = rownum(threeD, x,y,z-1,nx,ny,nz,px,py);
cval[idx] = naborz1;
aval[idx++] = FRONT(stencil);
}
}
/* south */
if (y > 0) {
nabory1 = rownum(threeD, x,y-1,z,nx,ny,nz,px,py);
cval[idx] = nabory1;
aval[idx++] = SOUTH(stencil);
}
/* west */
if (x > 0) {
naborx1 = rownum(threeD, x-1,y,z,nx,ny,nz,px,py);
cval[idx] = naborx1;
aval[idx++] = WEST(stencil);
/*hypre_fprintf(logFile, "--- row: %i; naborx1= %i\n", localRow+startRow+1, 1+naborx1);
*/
}
/*
else {
hypre_fprintf(logFile, "--- row: %i; x >= nx*px-1; naborx1 has old value: %i\n", localRow+startRow+1,1+naborx1);
}
*/
/* center node */
cval[idx] = localRow+startRow;
aval[idx++] = CENTER(stencil);
/* east */
if (x < nx*px-1) {
naborx2 = rownum(threeD,x+1,y,z,nx,ny,nz,px,py);
cval[idx] = naborx2;
aval[idx++] = EAST(stencil);
}
/*
else {
hypre_fprintf(logFile, "--- row: %i; x >= nx*px-1; nobors2 has old value: %i\n", localRow+startRow,1+naborx2);
}
*/
/* north */
if (y < ny*py-1) {
nabory2 = rownum(threeD,x,y+1,z,nx,ny,nz,px,py);
cval[idx] = nabory2;
aval[idx++] = NORTH(stencil);
}
/* up plane */
if (threeD) {
if (z < nz*pz-1) {
naborz2 = rownum(threeD,x,y,z+1,nx,ny,nz,px,py);
cval[idx] = naborz2;
aval[idx++] = BACK(stencil);
}
}
/* rhs[rhsIdx++] = RHS(stencil); */
rhs[localRow] = 0.0;
++localRow;
rp[localRow] = idx;
/* apply boundary conditions; only for 2D! */
if (!threeD && applyBdry) {
HYPRE_Int globalRow = localRow+startRow-1;
HYPRE_Int offset = rp[localRow-1];
HYPRE_Int len = rp[localRow] - rp[localRow-1];
double ctr, coeff;
/* hypre_fprintf(logFile, "globalRow = %i; naborx2 = %i\n", globalRow+1, naborx2+1); */
if (x == 0) { /* if x1 */
coeff = mg->A(mg->a, x+hhalf,y,z);
ctr = mg->A(mg->a, x-hhalf,y,z);
setBoundary_private(globalRow, cval+offset, aval+offset, len,
&(rhs[localRow-1]), bcx1, coeff, ctr, naborx2);
} else if (x == nx*px-1) { /* if x2 */
coeff = mg->A(mg->a, x-hhalf,y,z);
ctr = mg->A(mg->a, x+hhalf,y,z);
setBoundary_private(globalRow, cval+offset, aval+offset, len,
&(rhs[localRow-1]), bcx2, coeff, ctr, naborx1);
} else if (y == 0) { /* if y1 */
coeff = mg->B(mg->b, x, y+hhalf,z);
ctr = mg->B(mg->b, x, y-hhalf,z);
setBoundary_private(globalRow, cval+offset, aval+offset, len,
&(rhs[localRow-1]), bcy1, coeff, ctr, nabory2);
} else if (y == ny*py-1) { /* if y2 */
coeff = mg->B(mg->b, x, y-hhalf,z);
ctr = mg->B(mg->b, x, y+hhalf,z);
setBoundary_private(globalRow, cval+offset, aval+offset, len,
&(rhs[localRow-1]), bcy2, coeff, ctr, nabory1);
} else if (threeD) {
if (z == 0) {
coeff = mg->B(mg->b, x, y, z+hhalf);
ctr = mg->B(mg->b, x, y, z-hhalf);
setBoundary_private(globalRow, cval+offset, aval+offset, len,
&(rhs[localRow-1]), bcy1, coeff, ctr, naborz2);
} else if (z == nz*nx-1) {
coeff = mg->B(mg->b, x, y, z-hhalf);
ctr = mg->B(mg->b, x, y, z+hhalf);
setBoundary_private(globalRow, cval+offset, aval+offset, len,
&(rhs[localRow-1]), bcy1, coeff, ctr, naborz1);
}
}
}
}
}
}
END_FUNC_DH
}
void MatGenFD_Run(MatGenFD mg, HYPRE_Int id, HYPRE_Int np, Mat_dh *AOut, Vec_dh *rhsOut)
{
/* What this function does:
* 0. creates return objects (A and rhs)
* 1. computes "nice to have" values;
* 2. allocates storage, if required;
* 3. calls generateBlocked() or generateStriped().
* 4. initializes variable in A and rhs.
*/
START_FUNC_DH
Mat_dh A;
Vec_dh rhs;
bool threeD = mg->threeD;
HYPRE_Int nnz;
HYPRE_Int m = mg->m; /* local unknowns */
bool debug = false, striped;
if (mg->debug && logFile != NULL) debug = true;
striped = Parser_dhHasSwitch(parser_dh,"-striped");
/* 0. create objects */
Mat_dhCreate(AOut); CHECK_V_ERROR;
Vec_dhCreate(rhsOut); CHECK_V_ERROR;
A = *AOut;
rhs = *rhsOut;
/* ensure that processor grid contains the same number of
nodes as there are processors.
*/
if (! Parser_dhHasSwitch(parser_dh, "-noChecks")) {
if (!striped) {
HYPRE_Int npTest = mg->px*mg->py;
if (threeD) npTest *= mg->pz;
if (npTest != np) {
hypre_sprintf(msgBuf_dh, "numbers don't match: np_dh = %i, px*py*pz = %i", np, npTest);
SET_V_ERROR(msgBuf_dh);
}
}
}
/* 1. compute "nice to have" values */
/* each proc's subgrid dimension */
mg->cc = m;
if (threeD) {
m = mg->m = m*m*m;
} else {
m = mg->m = m*m;
}
mg->first = id*m;
mg->hh = 1.0/(mg->px*mg->cc - 1);
if (debug) {
hypre_sprintf(msgBuf_dh, "cc (local grid dimension) = %i", mg->cc);
SET_INFO(msgBuf_dh);
if (threeD) { hypre_sprintf(msgBuf_dh, "threeD = true"); }
else { hypre_sprintf(msgBuf_dh, "threeD = false"); }
SET_INFO(msgBuf_dh);
hypre_sprintf(msgBuf_dh, "np= %i id= %i", np, id);
SET_INFO(msgBuf_dh);
}
mg->id = id;
mg->np = np;
nnz = threeD ? m*7 : m*5;
/* 2. allocate storage */
if (mg->allocateMem) {
A->rp = (HYPRE_Int*)MALLOC_DH((m+1)*sizeof(HYPRE_Int)); CHECK_V_ERROR;
A->rp[0] = 0;
A->cval = (HYPRE_Int*)MALLOC_DH(nnz*sizeof(HYPRE_Int)); CHECK_V_ERROR
A->aval = (double*)MALLOC_DH(nnz*sizeof(double)); CHECK_V_ERROR;
/* rhs->vals = (double*)MALLOC_DH(m*sizeof(double)); CHECK_V_ERROR; */
}
/* 4. initialize variables in A and rhs */
rhs->n = m;
A->m = m;
A->n = m*mg->np;
A->beg_row = mg->first;
/* 3. generate matrix */
isThreeD = threeD; /* yuck! used in box_XX() */
if (Parser_dhHasSwitch(parser_dh,"-striped")) {
generateStriped(mg, A->rp, A->cval, A->aval, A, rhs); CHECK_V_ERROR;
} else {
generateBlocked(mg, A->rp, A->cval, A->aval, A, rhs); CHECK_V_ERROR;
}
/* add in bdry conditions */
/* only implemented for 2D mats! */
if (! threeD) {
/* fdaddbc(nx, ny, nz, rp, cval, diag, aval, rhs, h, mg); */
}
END_FUNC_DH
}
static void
data_set_type_info(TDSCOLUMN * col, struct _drecord *drec, SQLINTEGER odbc_ver)
{
const char *type;
#define SET_INFO(type, prefix, suffix) do { \
drec->sql_desc_literal_prefix = prefix; \
drec->sql_desc_literal_suffix = suffix; \
drec->sql_desc_type_name = type; \
return; \
} while(0)
#define SET_INFO2(type, prefix, suffix, len) do { \
drec->sql_desc_length = (len); \
SET_INFO(type, prefix, suffix); \
} while(0)
drec->sql_desc_unsigned = SQL_FALSE;
drec->sql_desc_octet_length = drec->sql_desc_length = col->on_server.column_size;
switch (tds_get_conversion_type(col->column_type, col->column_size)) {
case XSYBCHAR:
case SYBCHAR:
if (col->on_server.column_type == XSYBNCHAR)
SET_INFO2("nchar", "'", "'", col->on_server.column_size / 2);
SET_INFO("char", "'", "'");
case XSYBVARCHAR:
case SYBVARCHAR:
type = "varchar";
if (col->on_server.column_type == SYBNVARCHAR || col->on_server.column_type == XSYBNVARCHAR) {
drec->sql_desc_length = col->on_server.column_size / 2u;
type = "nvarchar";
}
if (is_blob_col(col))
drec->sql_desc_octet_length = drec->sql_desc_length =
SQL_SS_LENGTH_UNLIMITED;
SET_INFO(type, "'", "'");
case SYBTEXT:
if (col->on_server.column_type == SYBNTEXT)
SET_INFO2("ntext", "'", "'", col->on_server.column_size / 2);
SET_INFO("text", "'", "'");
case SYBBIT:
case SYBBITN:
drec->sql_desc_unsigned = SQL_TRUE;
SET_INFO2("bit", "", "", 1);
#if (ODBCVER >= 0x0300)
case SYBINT8:
/* TODO return numeric for odbc2 and convert bigint to numeric */
SET_INFO2("bigint", "", "", 19);
#endif
case SYBINT4:
SET_INFO2("int", "", "", 10);
case SYBINT2:
SET_INFO2("smallint", "", "", 5);
case SYBUINT1:
case SYBINT1:
drec->sql_desc_unsigned = SQL_TRUE;
SET_INFO2("tinyint", "", "", 3);
#if (ODBCVER >= 0x0300)
case SYBUINT8:
drec->sql_desc_unsigned = SQL_TRUE;
/* TODO return numeric for odbc2 and convert bigint to numeric */
SET_INFO2("unsigned bigint", "", "", 19);
#endif
case SYBUINT4:
drec->sql_desc_unsigned = SQL_TRUE;
SET_INFO2("unsigned int", "", "", 10);
case SYBUINT2:
drec->sql_desc_unsigned = SQL_TRUE;
SET_INFO2("unsigned smallint", "", "", 5);
case SYBREAL:
SET_INFO2("real", "", "", odbc_ver == SQL_OV_ODBC3 ? 24 : 7);
case SYBFLT8:
SET_INFO2("float", "", "", odbc_ver == SQL_OV_ODBC3 ? 53 : 15);
case SYBMONEY:
drec->sql_desc_octet_length = 21;
SET_INFO2("money", "$", "", 19);
case SYBMONEY4:
drec->sql_desc_octet_length = 12;
SET_INFO2("money", "$", "", 10);
case SYBDATETIME:
drec->sql_desc_octet_length = sizeof(TIMESTAMP_STRUCT);
SET_INFO2("datetime", "'", "'", 23);
case SYBDATETIME4:
drec->sql_desc_octet_length = sizeof(TIMESTAMP_STRUCT);
SET_INFO2("datetime", "'", "'", 16);
case SYBBINARY:
/* handle TIMESTAMP using usertype */
if (col->column_usertype == 80)
SET_INFO("timestamp", "0x", "");
SET_INFO("binary", "0x", "");
case SYBIMAGE:
SET_INFO("image", "0x", "");
case SYBVARBINARY:
if (is_blob_col(col))
drec->sql_desc_octet_length = drec->sql_desc_length =
SQL_SS_LENGTH_UNLIMITED;
SET_INFO("varbinary", "0x", "");
case SYBNUMERIC:
drec->sql_desc_octet_length = col->column_prec + 2;
SET_INFO2("numeric", "", "", col->column_prec);
case SYBDECIMAL:
drec->sql_desc_octet_length = col->column_prec + 2;
SET_INFO2("decimal", "", "", col->column_prec);
case SYBINTN:
case SYBDATETIMN:
case SYBFLTN:
case SYBMONEYN:
assert(0);
case SYBVOID:
case SYBNTEXT:
case SYBNVARCHAR:
case XSYBNVARCHAR:
case XSYBNCHAR:
break;
#if (ODBCVER >= 0x0300)
case SYBUNIQUE:
/* FIXME for Sybase ?? */
SET_INFO2("uniqueidentifier", "'", "'", 36);
case SYBVARIANT:
SET_INFO("sql_variant", "", "");
break;
#endif
case SYBMSDATETIMEOFFSET:
SET_INFO2("datetimeoffset", "'", "'", col->column_prec + 27);
case SYBMSDATETIME2:
SET_INFO2("datetime2", "'", "'", col->column_prec + 20);
case SYBMSTIME:
SET_INFO2("time", "'", "'", col->column_prec + 9);
case SYBMSDATE:
SET_INFO2("date", "'", "'", 10);
case SYBMSXML:
SET_INFO("xml", "'", "'");
}
SET_INFO("", "", "");
#undef SET_INFO
#undef SET_INFO2
}
static void
eval_thunk_selector (StgClosure **q, StgSelector * p, rtsBool evac)
// NB. for legacy reasons, p & q are swapped around :(
{
nat field;
StgInfoTable *info;
StgWord info_ptr;
StgClosure *selectee;
StgSelector *prev_thunk_selector;
bdescr *bd;
StgClosure *val;
prev_thunk_selector = NULL;
// this is a chain of THUNK_SELECTORs that we are going to update
// to point to the value of the current THUNK_SELECTOR. Each
// closure on the chain is a WHITEHOLE, and points to the next in the
// chain with payload[0].
selector_chain:
bd = Bdescr((StgPtr)p);
if (HEAP_ALLOCED_GC(p)) {
// If the THUNK_SELECTOR is in to-space or in a generation that we
// are not collecting, then bale out early. We won't be able to
// save any space in any case, and updating with an indirection is
// trickier in a non-collected gen: we would have to update the
// mutable list.
if (bd->flags & BF_EVACUATED) {
unchain_thunk_selectors(prev_thunk_selector, (StgClosure *)p);
*q = (StgClosure *)p;
// shortcut, behave as for: if (evac) evacuate(q);
if (evac && bd->gen_no < gct->evac_gen_no) {
gct->failed_to_evac = rtsTrue;
TICK_GC_FAILED_PROMOTION();
}
return;
}
// we don't update THUNK_SELECTORS in the compacted
// generation, because compaction does not remove the INDs
// that result, this causes confusion later
// (scavenge_mark_stack doesn't deal with IND). BEWARE! This
// bit is very tricky to get right. If you make changes
// around here, test by compiling stage 3 with +RTS -c -RTS.
if (bd->flags & BF_MARKED) {
// must call evacuate() to mark this closure if evac==rtsTrue
*q = (StgClosure *)p;
if (evac) evacuate(q);
unchain_thunk_selectors(prev_thunk_selector, (StgClosure *)p);
return;
}
}
// WHITEHOLE the selector thunk, since it is now under evaluation.
// This is important to stop us going into an infinite loop if
// this selector thunk eventually refers to itself.
#if defined(THREADED_RTS)
// In threaded mode, we'll use WHITEHOLE to lock the selector
// thunk while we evaluate it.
{
do {
info_ptr = xchg((StgPtr)&p->header.info, (W_)&stg_WHITEHOLE_info);
} while (info_ptr == (W_)&stg_WHITEHOLE_info);
// make sure someone else didn't get here first...
if (IS_FORWARDING_PTR(info_ptr) ||
INFO_PTR_TO_STRUCT((StgInfoTable *)info_ptr)->type != THUNK_SELECTOR) {
// v. tricky now. The THUNK_SELECTOR has been evacuated
// by another thread, and is now either a forwarding ptr or IND.
// We need to extract ourselves from the current situation
// as cleanly as possible.
// - unlock the closure
// - update *q, we may have done *some* evaluation
// - if evac, we need to call evacuate(), because we
// need the write-barrier stuff.
// - undo the chain we've built to point to p.
SET_INFO((StgClosure *)p, (const StgInfoTable *)info_ptr);
*q = (StgClosure *)p;
if (evac) evacuate(q);
unchain_thunk_selectors(prev_thunk_selector, (StgClosure *)p);
return;
}
}
#else
// Save the real info pointer (NOTE: not the same as get_itbl()).
info_ptr = (StgWord)p->header.info;
SET_INFO((StgClosure *)p,&stg_WHITEHOLE_info);
#endif
field = INFO_PTR_TO_STRUCT((StgInfoTable *)info_ptr)->layout.selector_offset;
// The selectee might be a constructor closure,
// so we untag the pointer.
selectee = UNTAG_CLOSURE(p->selectee);
selector_loop:
// selectee now points to the closure that we're trying to select
// a field from. It may or may not be in to-space: we try not to
// end up in to-space, but it's impractical to avoid it in
// general. The compacting GC scatters to-space pointers in
// from-space during marking, for example. We rely on the property
// that evacuate() doesn't mind if it gets passed a to-space pointer.
info = (StgInfoTable*)selectee->header.info;
if (IS_FORWARDING_PTR(info)) {
// We don't follow pointers into to-space; the constructor
// has already been evacuated, so we won't save any space
// leaks by evaluating this selector thunk anyhow.
goto bale_out;
}
info = INFO_PTR_TO_STRUCT(info);
switch (info->type) {
case WHITEHOLE:
goto bale_out; // about to be evacuated by another thread (or a loop).
case CONSTR:
case CONSTR_1_0:
case CONSTR_0_1:
case CONSTR_2_0:
case CONSTR_1_1:
case CONSTR_0_2:
case CONSTR_STATIC:
case CONSTR_NOCAF_STATIC:
{
// check that the size is in range
ASSERT(field < (StgWord32)(info->layout.payload.ptrs +
info->layout.payload.nptrs));
// Select the right field from the constructor
val = selectee->payload[field];
#ifdef PROFILING
// For the purposes of LDV profiling, we have destroyed
// the original selector thunk, p.
if (era > 0) {
// Only modify the info pointer when LDV profiling is
// enabled. Note that this is incompatible with parallel GC,
// because it would allow other threads to start evaluating
// the same selector thunk.
SET_INFO((StgClosure*)p, (StgInfoTable *)info_ptr);
OVERWRITING_CLOSURE((StgClosure*)p);
SET_INFO((StgClosure*)p, &stg_WHITEHOLE_info);
}
#endif
// the closure in val is now the "value" of the
// THUNK_SELECTOR in p. However, val may itself be a
// THUNK_SELECTOR, in which case we want to continue
// evaluating until we find the real value, and then
// update the whole chain to point to the value.
val_loop:
info_ptr = (StgWord)UNTAG_CLOSURE(val)->header.info;
if (!IS_FORWARDING_PTR(info_ptr))
{
info = INFO_PTR_TO_STRUCT((StgInfoTable *)info_ptr);
switch (info->type) {
case IND:
case IND_STATIC:
val = ((StgInd *)val)->indirectee;
goto val_loop;
case THUNK_SELECTOR:
((StgClosure*)p)->payload[0] = (StgClosure *)prev_thunk_selector;
prev_thunk_selector = p;
p = (StgSelector*)val;
goto selector_chain;
default:
break;
}
}
((StgClosure*)p)->payload[0] = (StgClosure *)prev_thunk_selector;
prev_thunk_selector = p;
*q = val;
// update the other selectors in the chain *before*
// evacuating the value. This is necessary in the case
// where the value turns out to be one of the selectors
// in the chain (i.e. we have a loop), and evacuating it
// would corrupt the chain.
unchain_thunk_selectors(prev_thunk_selector, val);
// evacuate() cannot recurse through
// eval_thunk_selector(), because we know val is not
// a THUNK_SELECTOR.
if (evac) evacuate(q);
return;
}
case IND:
case IND_STATIC:
// Again, we might need to untag a constructor.
selectee = UNTAG_CLOSURE( ((StgInd *)selectee)->indirectee );
goto selector_loop;
case BLACKHOLE:
{
StgClosure *r;
const StgInfoTable *i;
r = ((StgInd*)selectee)->indirectee;
// establish whether this BH has been updated, and is now an
// indirection, as in evacuate().
if (GET_CLOSURE_TAG(r) == 0) {
i = r->header.info;
if (IS_FORWARDING_PTR(i)) {
r = (StgClosure *)UN_FORWARDING_PTR(i);
i = r->header.info;
}
if (i == &stg_TSO_info
|| i == &stg_WHITEHOLE_info
|| i == &stg_BLOCKING_QUEUE_CLEAN_info
|| i == &stg_BLOCKING_QUEUE_DIRTY_info) {
goto bale_out;
}
ASSERT(i != &stg_IND_info);
}
selectee = UNTAG_CLOSURE( ((StgInd *)selectee)->indirectee );
goto selector_loop;
}
case THUNK_SELECTOR:
{
StgClosure *val;
// recursively evaluate this selector. We don't want to
// recurse indefinitely, so we impose a depth bound.
if (gct->thunk_selector_depth >= MAX_THUNK_SELECTOR_DEPTH) {
goto bale_out;
}
gct->thunk_selector_depth++;
// rtsFalse says "don't evacuate the result". It will,
// however, update any THUNK_SELECTORs that are evaluated
// along the way.
eval_thunk_selector(&val, (StgSelector*)selectee, rtsFalse);
gct->thunk_selector_depth--;
// did we actually manage to evaluate it?
if (val == selectee) goto bale_out;
// Of course this pointer might be tagged...
selectee = UNTAG_CLOSURE(val);
goto selector_loop;
}
case AP:
case AP_STACK:
case THUNK:
case THUNK_1_0:
case THUNK_0_1:
case THUNK_2_0:
case THUNK_1_1:
case THUNK_0_2:
case THUNK_STATIC:
// not evaluated yet
goto bale_out;
default:
barf("eval_thunk_selector: strange selectee %d",
(int)(info->type));
}
bale_out:
// We didn't manage to evaluate this thunk; restore the old info
// pointer. But don't forget: we still need to evacuate the thunk itself.
SET_INFO((StgClosure *)p, (const StgInfoTable *)info_ptr);
// THREADED_RTS: we just unlocked the thunk, so another thread
// might get in and update it. copy() will lock it again and
// check whether it was updated in the meantime.
*q = (StgClosure *)p;
if (evac) {
copy(q,(const StgInfoTable *)info_ptr,(StgClosure *)p,THUNK_SELECTOR_sizeW(),bd->dest_no);
}
unchain_thunk_selectors(prev_thunk_selector, *q);
return;
}
void iluk_mpi_bj(Euclid_dh ctx)
{
START_FUNC_DH
HYPRE_Int *rp, *cval, *diag;
HYPRE_Int *CVAL;
HYPRE_Int i, j, len, count, col, idx = 0;
HYPRE_Int *list, *marker, *fill, *tmpFill;
HYPRE_Int temp, m, from = ctx->from, to = ctx->to;
HYPRE_Int *n2o_row, *o2n_col;
HYPRE_Int first_row, last_row;
double *AVAL;
REAL_DH *work, *aval;
Factor_dh F = ctx->F;
SubdomainGraph_dh sg = ctx->sg;
if (ctx->F == NULL) {
SET_V_ERROR("ctx->F is NULL");
}
if (ctx->F->rp == NULL) {
SET_V_ERROR("ctx->F->rp is NULL");
}
/* printf_dh("====================== starting iluk_mpi_bj; level= %i\n\n", ctx->level);
*/
m = F->m;
rp = F->rp;
cval = F->cval;
fill = F->fill;
diag = F->diag;
aval = F->aval;
work = ctx->work;
n2o_row = sg->n2o_row;
o2n_col = sg->o2n_col;
/* allocate and initialize working space */
list = (HYPRE_Int*)MALLOC_DH((m+1)*sizeof(HYPRE_Int)); CHECK_V_ERROR;
marker = (HYPRE_Int*)MALLOC_DH(m*sizeof(HYPRE_Int)); CHECK_V_ERROR;
tmpFill = (HYPRE_Int*)MALLOC_DH(m*sizeof(HYPRE_Int)); CHECK_V_ERROR;
for (i=0; i<m; ++i) {
marker[i] = -1;
work[i] = 0.0;
}
/*---------- main loop ----------*/
/* global numbers of first and last locally owned rows,
with respect to A
*/
first_row = sg->beg_row[myid_dh];
last_row = first_row + sg->row_count[myid_dh];
for (i=from; i<to; ++i) {
HYPRE_Int row = n2o_row[i]; /* local row number */
HYPRE_Int globalRow = row + first_row; /* global row number */
EuclidGetRow(ctx->A, globalRow, &len, &CVAL, &AVAL); CHECK_V_ERROR;
/* compute scaling value for row(i) */
if (ctx->isScaled) {
compute_scaling_private(i, len, AVAL, ctx); CHECK_V_ERROR;
}
/* Compute symbolic factor for row(i);
this also performs sparsification
*/
count = symbolic_row_private(i, first_row, last_row,
list, marker, tmpFill,
len, CVAL, AVAL,
o2n_col, ctx); CHECK_V_ERROR;
/* Ensure adequate storage; reallocate, if necessary. */
if (idx + count > F->alloc) {
Factor_dhReallocate(F, idx, count); CHECK_V_ERROR;
SET_INFO("REALLOCATED from lu_mpi_bj");
cval = F->cval;
fill = F->fill;
aval = F->aval;
}
/* Copy factored symbolic row to permanent storage */
col = list[m];
while (count--) {
cval[idx] = col;
fill[idx] = tmpFill[col];
++idx;
col = list[col];
}
/* add row-pointer to start of next row. */
rp[i+1] = idx;
/* Insert pointer to diagonal */
temp = rp[i];
while (cval[temp] != i) ++temp;
diag[i] = temp;
/* compute numeric factor for current row */
numeric_row_private(i, first_row, last_row,
len, CVAL, AVAL,
work, o2n_col, ctx); CHECK_V_ERROR
EuclidRestoreRow(ctx->A, globalRow, &len, &CVAL, &AVAL); CHECK_V_ERROR;
/* Copy factored numeric row to permanent storage,
and re-zero work vector
*/
for (j=rp[i]; j<rp[i+1]; ++j) {
col = cval[j];
aval[j] = work[col];
work[col] = 0.0;
}
/* check for zero diagonal */
if (! aval[diag[i]]) {
hypre_sprintf(msgBuf_dh, "zero diagonal in local row %i", i+1);
SET_V_ERROR(msgBuf_dh);
}
}
FREE_DH(list); CHECK_V_ERROR;
FREE_DH(tmpFill); CHECK_V_ERROR;
FREE_DH(marker); CHECK_V_ERROR;
END_FUNC_DH
}
