41{
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265 char DirAB, SideOp, UploA, cbtop, cbtopsave, cctop, cctopsave,
266 rbtop, rbtopsave, rctop, rctopsave;
267 Int Ai, Aj, Bi, Bj, ChooseABC, Ci, Cj, ForceTop, ctxt, info,
268 lside, mycol, myrow, nb, npcol, nprow, upper;
269 double ABCest, BCest, tmp1, tmp2, tmp3, tmp4;
271
272
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277
278
284#ifndef NO_ARGCHK
285
286
287
289 if( !( info = ( ( nprow == -1 ) ? -( 901 +
CTXT_ ) : 0 ) ) )
290 {
291 if( ( !lside ) && ( SideOp !=
CRIGHT ) )
292 {
293 PB_Cwarn( ctxt, __LINE__,
"PZHEMM",
"Illegal SIDE = %c\n", SideOp );
294 info = -1;
295 }
296 else if( ( !upper ) && ( UploA !=
CLOWER ) )
297 {
298 PB_Cwarn( ctxt, __LINE__,
"PZHEMM",
"Illegal UPLO = %c\n", UploA );
299 info = -2;
300 }
301 if( lside )
302 {
303 PB_Cchkmat( ctxt,
"PZHEMM",
"A", *M, 3, *M, 3, Ai, Aj, Ad, 9,
304 &info );
305 PB_Cchkmat( ctxt,
"PZHEMM",
"B", *M, 3, *N, 4, Bi, Bj, Bd, 13,
306 &info );
307 }
308 else
309 {
310 PB_Cchkmat( ctxt,
"PZHEMM",
"A", *N, 4, *N, 4, Ai, Aj, Ad, 9,
311 &info );
312 PB_Cchkmat( ctxt,
"PZHEMM",
"B", *M, 3, *N, 4, Bi, Bj, Bd, 13,
313 &info );
314 }
315 PB_Cchkmat( ctxt,
"PZHEMM",
"C", *M, 3, *N, 4, Ci, Cj, Cd, 18,
316 &info );
317 }
318 if( info ) {
PB_Cabort( ctxt,
"PZHEMM", info );
return; }
319#endif
320
321
322
323 if( ( *M == 0 ) || ( *N == 0 ) ||
326 return;
327
328
329
331
332
333
335 {
337 {
339 ((char *) C), Ci, Cj, Cd );
340 }
342 {
344 Ci, Cj, Cd );
345 }
346 return;
347 }
348
349
350
351#ifdef NO_ARGCHK
353#endif
354
355
356
357
358
359
360
361 if( lside )
362 {
364 ABCest = (double)(*M) *
365 ( ( ( ( Ad[
CSRC_] == -1 ) || ( npcol == 1 ) ) ?
ZERO : tmp1 /
TWO ) +
366 ( ( ( Bd[
RSRC_] == -1 ) || ( nprow == 1 ) ) ?
ZERO :
370 BCest = (double)(*N) *
372 ( nprow == 1 ?
ZERO : tmp2 ) +
MAX( tmp2, tmp3 ) +
373 ( ( ( Bd[
CSRC_] == -1 ) || ( npcol == 1 ) ) ?
ZERO : tmp1 ) +
375 }
376 else
377 {
379 ABCest = (double)(*N) *
380 ( ( ( ( Ad[
RSRC_] == -1 ) || ( nprow == 1 ) ) ?
ZERO : tmp1 /
TWO ) +
381 ( ( ( Bd[
CSRC_] == -1 ) || ( npcol == 1 ) ) ?
ZERO :
385 BCest = (double)(*M) *
386 ( ( npcol == 1 ?
ZERO : tmp1 ) +
MAX( tmp1, tmp3 ) +
388 ( ( ( Bd[
RSRC_] == -1 ) || ( nprow == 1 ) ) ?
ZERO : tmp2 ) +
390 }
391
392
393
394 ChooseABC = ( ( 1.5 * ABCest ) <= BCest );
395
396
397
398
399
401 ForceTop = ( ( *M > nb ) && ( *N > nb ) );
402
407
408 if( ChooseABC )
409 {
410 if( ForceTop )
411 {
412 rbtopsave = rbtop; rctopsave = rctop;
413 cbtopsave = cbtop; cctopsave = cctop;
414
415 if( lside )
416 {
417
418
419
420
425 ( cbtop !=
CTOP_SRING ) ) || ( cbtop != cctop ) )
426 {
429
430
431
432
435 }
436 }
437 else
438 {
439
440
441
442
447 ( rbtop !=
CTOP_SRING ) ) || ( rbtop != rctop ) )
448 {
451
452
453
454
457 }
458 }
459 }
460 if( lside )
462 else
464
466 ((char *)ALPHA), ((char *)A), Ai, Aj, Ad, ((char *)B), Bi,
467 Bj, Bd, ((char *)BETA), ((char *)C), Ci, Cj, Cd );
468 }
469 else
470 {
471 if( ForceTop )
472 {
473 rbtopsave = rbtop; rctopsave = rctop;
474 cbtopsave = cbtop; cctopsave = cctop;
475
476 if( lside )
477 {
478
479
480
481
483 ( rbtop !=
CTOP_SRING ) ) || ( rbtop != rctop ) )
484 {
487
488
489
490
493 }
496 }
497 else
498 {
499
500
501
502
504 ( cbtop !=
CTOP_SRING ) ) || ( cbtop != cctop ) )
505 {
508
509
510
511
514 }
517 }
518 }
519 if( lside )
522 else
525
527 ((char *)ALPHA), ((char *)A), Ai, Aj, Ad, ((char *)B), Bi,
528 Bj, Bd, ((char *)BETA), ((char *)C), Ci, Cj, Cd );
529 }
530
531
532
533 if( ForceTop )
534 {
539 }
540
541
542
543}