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245 char DirAB, DirBC, OpC, OpR, TrA, TrB, ctop, ctopsave, rtop,
246 rtopsave;
247 Int Ai, Aj, Bi, Bj, ChooseAB, ChooseBC, Ci, Cj, ForceTop, ctxt,
248 info, mycol, myrow, nb, nota, notb, npcol, nprow;
249 double ABest, ACest, BCest, tmp1, tmp2, tmp3, tmp4;
251
252
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255
256
257
258
264#ifndef NO_ARGCHK
265
266
267
269 &mycol );
270 if( !( info = ( ( nprow == -1 ) ? -( 1001 +
CTXT_ ) : 0 ) ) )
271 {
272 if( ( !nota ) && ( TrA !=
CTRAN ) && ( TrA !=
CCOTRAN ) )
273 {
274 PB_Cwarn( ctxt, __LINE__,
"PSGEMM",
"Illegal TRANSA = %c\n", TrA );
275 info = -1;
276 }
277 else if( ( !notb ) && ( TrB !=
CTRAN ) && ( TrB !=
CCOTRAN ) )
278 {
279 PB_Cwarn( ctxt, __LINE__,
"PSGEMM",
"Illegal TRANSB = %c\n", TrB );
280 info = -2;
281 }
282 if( nota )
283 PB_Cchkmat( ctxt,
"PSGEMM",
"A", *M, 3, *K, 5, Ai, Aj, Ad, 10,
284 &info );
285 else
286 PB_Cchkmat( ctxt,
"PSGEMM",
"A", *K, 5, *M, 3, Ai, Aj, Ad, 10,
287 &info );
288 if( notb )
289 PB_Cchkmat( ctxt,
"PSGEMM",
"B", *K, 5, *N, 4, Bi, Bj, Bd, 14,
290 &info );
291 else
292 PB_Cchkmat( ctxt,
"PSGEMM",
"B", *N, 4, *K, 5, Bi, Bj, Bd, 14,
293 &info );
294 PB_Cchkmat( ctxt,
"PSGEMM",
"C", *M, 3, *N, 4, Ci, Cj, Cd, 19,
295 &info );
296 }
297 if( info ) {
PB_Cabort( ctxt,
"PSGEMM", info );
return; }
298#endif
299
300
301
302 if( ( *M == 0 ) || ( *N == 0 ) ||
305 return;
306
307
308
310
311
312
314 {
316 {
318 ((char * ) C), Ci, Cj, Cd );
319 }
321 {
323 ((char * ) C), Ci, Cj, Cd );
324 }
325 return;
326 }
327
328
329
330#ifdef NO_ARGCHK
332#endif
333
334
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336
337
338
339
340
341 ABest = (double)(*K);
342 ACest = (double)(*M);
343 BCest = (double)(*N);
344
345 if( notb )
346 {
347 if( nota )
348 {
350 ABest *= ( ( ( Ad[
CSRC_] == -1 ) || ( npcol == 1 ) ) ?
ZERO : tmp1 ) +
351 ( ( ( Bd[
RSRC_] == -1 ) || ( nprow == 1 ) ) ?
ZERO : tmp2 );
352
355 ACest *= ( npcol == 1 ?
ZERO : tmp1 ) +
MAX( tmp1, tmp3 ) +
357
361 ( nprow == 1 ?
ZERO : tmp2 ) +
MAX( tmp2, tmp4 );
362 }
363 else
364 {
367 ABest *= ( npcol == 1 ?
ZERO : tmp1 ) +
MAX( tmp1, tmp3 ) +
368 ( nprow == 1 ?
ZERO : tmp2 );
369
371 ACest *= ( ( ( Ad[
CSRC_] == -1 ) || ( npcol == 1 ) ) ?
ZERO : tmp1 ) +
373 ( ( ( Bd[
RSRC_] == -1 ) || ( nprow == 1 ) ) ?
ZERO : tmp2 );
374
377 BCest *= ( ( ( Bd[
CSRC_] == -1 ) || ( npcol == 1 ) ) ?
ZERO : tmp1 ) +
379 }
380 }
381 else
382 {
383 if( nota )
384 {
387 ABest *= ( npcol == 1 ?
ZERO : tmp1 ) +
388 ( nprow == 1 ?
ZERO : tmp2 ) +
MAX( tmp2, tmp4 );
389
392 ACest *=
CBRATIO * ( npcol == 1 ?
ZERO : tmp1 ) +
MAX( tmp1, tmp3 ) +
393 ( ( ( Ad[
RSRC_] == -1 ) || ( nprow == 1 ) ) ?
ZERO : tmp2 );
394
397 ( ( ( Ad[
CSRC_] == -1 ) || ( npcol == 1 ) ) ?
ZERO : tmp1 ) +
398 ( ( ( Bd[
RSRC_] == -1 ) || ( nprow == 1 ) ) ?
ZERO : tmp2 );
399 }
400 else
401 {
404 ABest *= ( npcol == 1 ?
ZERO : tmp1 ) +
MAX( tmp1, tmp3 ) +
405 ( nprow == 1 ?
ZERO : tmp2 ) +
MAX( tmp2, tmp4 );
406
409 ACest *=
CBRATIO * ( npcol == 1 ?
ZERO : tmp1 ) +
MAX( tmp1, tmp3 ) +
410 ( nprow == 1 ?
ZERO : tmp2 ) +
MAX( tmp2, tmp4 );
411
414 BCest *= ( npcol == 1 ?
ZERO : tmp1 ) +
MAX( tmp1, tmp3 ) +
416 }
417 }
418 ChooseAB = ( ( ABest <= ( 1.3 * BCest ) ) && ( ABest <= ( 1.3 * ACest ) ) );
419 ChooseBC = ( ( BCest <= ACest ) && ( ( 1.3 * BCest ) <= ABest ) );
420
421
422
423
424
426 ForceTop = ( ( *M > nb ) && ( *N > nb ) && ( *K > nb ) );
427
428 if( ChooseAB )
429 {
432 }
433 else if( ChooseBC )
434 {
437 }
438 else
439 {
442 }
443
446
447 if( ForceTop )
448 {
449 rtopsave = rtop;
450 ctopsave = ctop;
451
452
453
454
461
462
463
464
469 }
470
473
474 if( ChooseAB )
475 {
477 NOTRAN :
TRAN ), *M, *N, *K, ((char *)ALPHA), ((char *)A),
478 Ai, Aj, Ad, ((char *)B), Bi, Bj, Bd, ((char *)BETA),
479 ((char *)C), Ci, Cj, Cd );
480 }
481 else if( ChooseBC )
482 {
484 NOTRAN :
TRAN ), *M, *N, *K, ((char *)ALPHA), ((char *)A),
485 Ai, Aj, Ad, ((char *)B), Bi, Bj, Bd, ((char *)BETA),
486 ((char *)C), Ci, Cj, Cd );
487 }
488 else
489 {
491 NOTRAN :
TRAN ), *M, *N, *K, ((char *)ALPHA), ((char *)A),
492 Ai, Aj, Ad, ((char *)B), Bi, Bj, Bd, ((char *)BETA),
493 ((char *)C), Ci, Cj, Cd );
494 }
495
496
497
498 if( ForceTop )
499 {
500 rtopsave = *
PB_Ctop( &ctxt, &OpR,
ROW, &rtopsave );
502 }
503
504
505
506}