int
f4zeroBlockGen(
struct KgenContext *ctx,
const SubproblemDim *dim,
const PGranularity *pgran,
const char *memPrefix)
{
char tmp[1024];
ItemWork work;
LoopCtl loopCtl;
GenPriv priv;
char pref;
LoopUnrollers unrollers;
if (!strcmp(memPrefix, "__local")) {
pref = 'l';
}
else if (!strcmp(memPrefix, "__global")) {
pref = 'g';
}
else {
return -EINVAL;
}
if (dim->y != 1) {
return -EINVAL;
}
memset(&loopCtl, 0, sizeof(loopCtl));
memset(&unrollers, 0, sizeof(unrollers));
memset(&priv, 0, sizeof(GenPriv));
initGenPriv(&priv, TYPE_COMPLEX_DOUBLE, FLOAT4_VECLEN * sizeof(cl_float),
dim, 0, (const ItemWork*)&work, pgran);
getItemWork(&work, dim, pgran, priv.nfloats, priv.vecLen);
sprintf(tmp, f4zeroDecl, pref, dim->x, memPrefix);
kgenDeclareFunction(ctx, tmp);
kgenBeginFuncBody(ctx);
// declare local ID variable and set data offset
kgenDeclareLocalID(ctx, lidVarName, pgran);
sprintf(tmp, "\ndata += %s * %lu;\n\n",
lidVarName, work.nrCols);
kgenAddStmt(ctx, tmp);
unrollers.genSingle = f4zeroSingle;
loopCtl.inBound = (unsigned int)work.nrCols;
unrollers.getVecLen = getVecLen;
kgenLoopUnroll(ctx, &loopCtl, TYPE_COMPLEX_DOUBLE, &unrollers, &priv);
if (work.tail) {
addTailCode(ctx, &priv, NULL, f4zeroSingle);
}
return kgenEndFuncBody(ctx);
}
// generator working with subproblems of any dimension
static int
copyDBlockGenericGen(
struct KgenContext *ctx,
const PGranularity *pgran,
GenPriv *gpriv)
{
char fpref;
const char varPref[2] = {'G', 'L'};
char tmp[1024];
bool image;
const char *s[3];
int gdir;
unsigned int i, n, gsize;
const char *vfield;
DataType dtype = gpriv->dtype;
fpref = dtypeToPrefix(dtype);
if (!fpref || (fpref == 'i')) {
return -EINVAL;
}
image = (gpriv->dir == DBLOCK_GLOBAL_TO_IMAGE ||
gpriv->dir == DBLOCK_LOCAL_TO_IMAGE);
s[0] = (gpriv->transp) ? "Transp" : "";
vfield = dtypeUPtrField(dtype);
n = FLOAT4_VECLEN / gpriv->nfloats;
gsize = pgran->wgSize[0] * pgran->wgSize[1];
if (image) {
char srcStr[1024];
s[1] = (gpriv->packed) ? "Pack" : "";
if (gpriv->dir == DBLOCK_GLOBAL_TO_IMAGE) {
sprintf(srcStr, "src.%s += (startRow + lid * n) *"
" srcLD + startCol;\n", vfield);
sprintf(tmp, copyMemGImgDBlockSlowDecl, fpref, s[1]);
}
else {
sprintf(srcStr, "src.%s += srcLD * lid * n;\n", vfield);
sprintf(tmp, copyMemLImgDBlockSlowDecl, fpref, s[1]);
}
kgenDeclareFunction(ctx, tmp);
kgenBeginFuncBody(ctx);
sprintf(tmp, "int x, y;\n"
"uint i, j, n, jb, jv;\n"
"int lsize = %u;\n", gsize);
kgenAddStmt(ctx, tmp);
kgenDeclareLocalID(ctx, "lid", pgran);
if (gpriv->packed) {
char nLinesStr[1024];
sprintf(nLinesStr,
"nLines = (get_image_width(dst) - startX) * %d / nrCols;\n"
"index = lid * n;\n", FLOAT4_VECLEN / gpriv->nfloats);
sprintf(tmp, "int nLines, index;\n");
kgenAddStmt(ctx, tmp);
sprintf(tmp, copyMemDBlockSlowStart[0], 4 * n, 4 * n, n,"",
nLinesStr, srcStr);
}
else {
sprintf(tmp, copyMemDBlockSlowStart[0], 4 * n, 4 * n, n, "",
"x = startX;\n" "y = startY + lid * n;\n", srcStr);
}
kgenAddStmt(ctx, tmp);
gdir = (gpriv->dir == DBLOCK_GLOBAL_TO_IMAGE) ? 0 : 1;
if (gpriv->packed) {
sprintf(tmp, copyMemImgDBlockPackedSlow, varPref[gdir],
FLOAT4_VECLEN / gpriv->nfloats, vfield);
}
else {
sprintf(tmp, copyMemImgDBlockSlow, varPref[gdir], vfield);
}
kgenAddStmt(ctx, tmp);
}
else {
LoopCtl loopCtl;
LoopUnrollers unrollers;
char buf[3][256];
memset(&loopCtl, 0, sizeof(loopCtl));
memset(&unrollers, 0, sizeof(unrollers));
s[1] = (gpriv->conjugate) ? "Conj" : "";
s[2] = (gpriv->notVectorize) ? "Nvec" : "";
gdir = (gpriv->dir == DBLOCK_GLOBAL_TO_LOCAL) ? 0 : 1;
sprintf(tmp, copyMemDBlockSlowDecl,
fpref, s[0], s[1], s[2], varPref[gdir], varPref[1 - gdir],
varPref[1 - gdir], varPref[gdir]);
kgenDeclareFunction(ctx, tmp);
kgenBeginFuncBody(ctx);
kgenDeclareLocalID(ctx, "lid", pgran);
sprintf(tmp, "int lsize = %u;\n", gsize);
kgenAddStmt(ctx, tmp);
if (dtype == TYPE_COMPLEX_DOUBLE) {
s[0] = "";
s[1] = "";
}
else {
s[0] = "uint js;\n";
s[1] = (gpriv->transp || gpriv->conjugate) ? "float4 tmp;\n" : "";
}
// pass over rows or columns?
i = (gpriv->transp && gdir) ? 1 : 0;
if (dtype == TYPE_COMPLEX_DOUBLE) {
buf[0][0] = '\0';
}
else {
const char *boundName;
// set counter bound to copy tail part, each work less than float4
boundName = (i) ? "nrRows" : "nrCols";
/*
* FIXME: the kludge is introduced due to strange
* runtime segfault at block transferring for another
* data types. Verify it later. Now, for non float types
* keep only simple loop.
*/
if (i && (dtype != TYPE_FLOAT)) {
gpriv->notVectorize = true;
}
if (gpriv->notVectorize) {
sprintf(buf[0], "jb = 0;\n"
"jv = 0;\n"
"js = %s;\n",
boundName);
}
else {
sprintf(buf[0], "js = %s - jb * %u - jv * %u;\n",
boundName, 4 * n, n);
}
}
// set initial pointers
if (!gdir) {
sprintf(buf[1], "src.%s += (startRow + lid * n) * srcLD + "
"startCol;\n", vfield);
if (gpriv->transp) {
sprintf(buf[2], "dst.%s += lid * n;\n", vfield);
}
else {
sprintf(buf[2], "dst.%s += dstLD * lid * n;\n", vfield);
}
}
else {
if (gpriv->transp) {
sprintf(buf[1], "src.%s += lid * n;\n", vfield);
}
else {
sprintf(buf[1], "src.%s += srcLD * lid * n;\n", vfield);
}
sprintf(buf[2], "dst.%s += (startRow + lid * n) * dstLD + "
"startCol;\n", vfield);
}
sprintf(tmp, copyMemSlowLvars, s[0], s[1],
varPref[1 - gdir], varPref[gdir]);
kgenAddStmt(ctx, tmp);
sprintf(tmp, copyMemDBlockSlowStart[i],
4 * n, 4 * n, n, buf[0], buf[1], buf[2]);
kgenAddStmt(ctx, tmp);
// prepare to loop unrolling
gpriv->srcName = "src1";
gpriv->dstName = "dst1";
if (gdir) {
gpriv->locLDName = "srcLD";
gpriv->globLDName = "dstLD";
}
else {
gpriv->locLDName = "dstLD";
gpriv->globLDName = "srcLD";
}
loopCtl.ocName = "j";
if (gpriv->transp) {
unrollers.genSingle = copyMemSingleTransp;
if (dtype != TYPE_COMPLEX_DOUBLE) {
unrollers.genSingleVec = copyMemVecTransp;
}
}
else {
unrollers.genSingle = copyMemSingle;
if (dtype != TYPE_COMPLEX_DOUBLE) {
unrollers.genSingleVec = copyMemVec;
}
}
// external loop
kgenBeginBranch(ctx, "for (i = 0; i < n; i++)");
copyMemPreUnroll(ctx, gpriv);
// finally, unroll all loops
unrollers.getVecLen = getVecLen;
// copying with 4 float4 words
if (!gpriv->notVectorize) {
loopCtl.outBound.name = "jb";
loopCtl.inBound = 4 * n;
kgenLoopUnroll(ctx, &loopCtl, dtype, &unrollers, gpriv);
// copying with float4 words
loopCtl.outBound.name = "jv";
loopCtl.inBound = n;
kgenLoopUnroll(ctx, &loopCtl, dtype, &unrollers, gpriv);
}
// copying the remaining tail
if (dtype != TYPE_COMPLEX_DOUBLE) {
unrollers.genSingleVec = NULL;
loopCtl.outBound.name = "js";
loopCtl.inBound = 1;
kgenLoopUnroll(ctx, &loopCtl, dtype, &unrollers, gpriv);
}
copyMemPostUnroll(ctx, gpriv);
kgenEndBranch(ctx, NULL);
}
return kgenEndFuncBody(ctx);
}
// generator optimizing to a subproblem size
static int
copyDBlockOptimGen(
struct KgenContext *ctx,
const SubproblemDim *dim,
const PGranularity *pgran,
GenPriv *gpriv)
{
char fpref;
const char varPref[2] = {'G', 'L'};
char tmp[1024];
// lead dimension for right and transposed local block in float words
ItemWork work;
LoopCtl loopCtl;
LoopUnrollers unrollers;
const char *s, *s1, *s2;
bool image;
SubproblemDim newDim;
// copying direction within the memory or image related function group
int gdir = 0;
int r;
fpref = dtypeToPrefix(gpriv->dtype);
if (!fpref || (fpref == 'i')) {
return -EINVAL;
}
image = (gpriv->dir == DBLOCK_GLOBAL_TO_IMAGE ||
gpriv->dir == DBLOCK_LOCAL_TO_IMAGE);
memset(&unrollers, 0, sizeof(unrollers));
memset(&loopCtl, 0, sizeof(loopCtl));
memset(&newDim, 0, sizeof(newDim));
gpriv->dim = &newDim;
gpriv->work = (const ItemWork*)&work;
gpriv->globLDName = "ld";
s = (gpriv->transp) ? "Transp" : "";
s1 = (gpriv->conjugate) ? "Conj" : "";
s2 = (gpriv->notVectorize) ? "Nvec" : "";
if ((gpriv->dir == DBLOCK_LOCAL_TO_GLOBAL) && gpriv->transp) {
// pass over columns of the block stored in the local memory
newDim.x = dim->y;
newDim.y = dim->x;
}
else {
// pass over rows
newDim.x = dim->x;
newDim.y = dim->y;
}
getItemWork(&work, &newDim, pgran, gpriv->nfloats, gpriv->vecLen);
if (image) {
s = (gpriv->packed) ? "Pack" : "";
if (gpriv->dir == DBLOCK_GLOBAL_TO_IMAGE) {
sprintf(tmp, copyMemGImgDBlockDecl, fpref, s, dim->y, dim->x);
}
else {
sprintf(tmp, copyMemLImgDBlockDecl, fpref, s, dim->y, dim->x);
}
}
else {
gdir = (gpriv->dir == DBLOCK_GLOBAL_TO_LOCAL) ? 0 : 1;
sprintf(tmp, copyMemDBlockDecl, fpref, s, s1, s2, varPref[gdir],
varPref[1 - gdir], dim->y, dim->x, varPref[1 - gdir],
varPref[gdir]);
}
kgenDeclareFunction(ctx, tmp);
kgenBeginFuncBody(ctx);
kgenDeclareLocalID(ctx, lidVarName, pgran);
if (image) {
// data for loop unrolling
if (work.nrRows > 1) {
gpriv->srcName = "src1";
gpriv->dstName = "dst";
gpriv->imgXName="x1";
gpriv->imgYName="y1";
if(gpriv->dir == DBLOCK_GLOBAL_TO_IMAGE) {
kgenAddStmt(ctx, "GPtr src1;\n");
}
else if(gpriv->dir == DBLOCK_LOCAL_TO_IMAGE) {
kgenAddStmt(ctx, "LPtr src1;\n");
}
kgenAddStmt(ctx, "int x1, y1;\n");
unrollers.preUnroll = copyImgPreUnroll;
unrollers.postUnroll = copyImgPostUnroll;
}
else {
gpriv->srcName = "src";
// dst has image2d_t type here
gpriv->dstName = "dst";
gpriv->imgXName="x";
gpriv->imgYName="y";
}
}
else {
if ((gpriv->nfloats != FLOAT4_VECLEN) &&
(gpriv->transp || gpriv->conjugate)) {
/*
* temporary variable to transpose or conjugate non double
* complex elements
*/
kgenAddStmt(ctx, "float4 tmp;\n");
}
if (work.nrRows > 1) {
sprintf(tmp, privatePtrs, varPref[gdir], varPref[1 - gdir]);
kgenAddStmt(ctx, tmp);
// data for loop unrolling
unrollers.preUnroll = copyMemPreUnroll;
unrollers.postUnroll = copyMemPostUnroll;
gpriv->srcName = "src1";
gpriv->dstName = "dst1";
}
else {
gpriv->srcName = "src";
gpriv->dstName = "dst";
}
}
if ((work.nrRows > 1) || work.nrItems) {
prepareLoop(ctx, &work, &loopCtl);
}
kgenAddBlankLine(ctx);
loopCtl.inBound = (unsigned long)work.nrCols;
// now, prepare all needed for loop unrolling
if (image) {
kgenAddStmt(ctx, "int x, y;\n");
if (gpriv->packed) {
kgenAddStmt(ctx, "int pLine, index;\n");
}
gpriv->lmemLD = fl4RowWidth(dim->x, gpriv->typeSize) *
FLOAT4_VECLEN / gpriv->nfloats;
// set up starting x and y in image
addSettingImageXYCode(ctx, "x", "y", pgran, gpriv);
if (gpriv->dir == DBLOCK_GLOBAL_TO_IMAGE) {
// set initial global pointer
addSettingPtrCode(ctx, "src", 0, false, pgran, gpriv);
}
else if (gpriv->dir == DBLOCK_LOCAL_TO_IMAGE) {
// set initial local pointer
addSettingPtrCode(ctx, "src", gpriv->lmemLD, gpriv->transp,
pgran, gpriv);
}
unrollers.genSingleVec = copyImgVec;
unrollers.genSingle = copyImgSingle;
}
else {
// set initial global pointer
s = (gdir) ? "dst" : "src";
addSettingPtrCode(ctx, s, 0, false, pgran, gpriv);
s = (gdir) ? "src" : "dst";
if (!gdir && gpriv->transp) {
gpriv->lmemLD = fl4RowWidth(dim->y, gpriv->typeSize) *
FLOAT4_VECLEN / gpriv->nfloats;
}
else {
gpriv->lmemLD = fl4RowWidth(dim->x, gpriv->typeSize) *
FLOAT4_VECLEN / gpriv->nfloats;
}
if (gpriv->transp) {
unrollers.genSingleVec = (gpriv->notVectorize) ? NULL :
copyMemVecTransp;
unrollers.genSingle = copyMemSingleTransp;
}
else {
unrollers.genSingleVec = (gpriv->notVectorize) ? NULL : copyMemVec;
unrollers.genSingle = copyMemSingle;
}
addSettingPtrCode(ctx, s, gpriv->lmemLD, gpriv->transp,
pgran, gpriv);
}
unrollers.getVecLen = getVecLen;
// unroll for float4 aligned data chunk
kgenLoopUnroll(ctx, &loopCtl, gpriv->dtype, &unrollers, gpriv);
/*
* Unroll for remaining data tail.
* Block tail reading/writing is done separately
* when many work items process single row
* because the compiler don't like any conditional
* branches in loops
*/
if ((unrollers.postUnroll == NULL) && work.tail) {
addCopyTailCode(ctx, gpriv);
}
r = kgenEndFuncBody(ctx);
return r ? -EOVERFLOW : 0;
}
static ssize_t
generator(
char *buf,
size_t buflen,
const struct SubproblemDim *subdims,
const struct PGranularity *pgran,
void *extra)
{
char tmp[1024];
struct KgenContext *ctx;
ssize_t ret;
CLBLASKernExtra *kextra = (CLBLASKernExtra*)extra;
DataType dtype = kextra->dtype;
KernelExtraFlags kflags = kextra->flags;
CLBLASKernExtra extraNew;
BlasGenSettings gset;
TileMulOpts mulOpts;
const char *ptrName;
UpdateResultFlags upFlags = 0;
TilePostFetchPrivate pfPriv;
unsigned int l1Pans;
bool b;
Tile parTile;
TrsmExtraParams *extraParams = (TrsmExtraParams *)kextra->solverPriv;
int ldsLarge, lds_diagonal;
bool isInline;
TileSet tileSet;
char copy2LDSFuncName[FUNC_NAME_MAXLEN];
TailStatus tailStatus = 0;
FetchAddrMode addrMode = 0;
bool tailM = ((kflags & KEXTRA_TAILS_M) != 0);
bool tailN = ((kflags & KEXTRA_TAILS_N) != 0);
size_t alignK;
if (pgran->wgDim != 1) {
return -EINVAL;
}
l1Pans = (unsigned int)(subdims[0].x / subdims[1].x);
memset(&gset, 0, sizeof(gset));
gset.flags = BGF_WHOLE_A | BGF_EXPLICIT_INLINE | BGF_UPTRS;
memcpy(gset.subdims, subdims, sizeof(SubproblemDim) * 2);
// there is not need in block structure along K
gset.subdims[0].bwidth = gset.subdims[1].bwidth;
subdims = gset.subdims;
/*
* Since tiles are changed dynamically, e. g. in the main tilemul
* loop they are rectangular, but at the second stage both A and B
* tile storages are used for square tiles. One must adjust physical
* vectorization accordindly, so as vector length might not be
* greater than linear size of any tile
*/
memcpy(&extraNew, kextra, sizeof(extraNew));
extraNew.vecLenA = umin(kextra->vecLenA, (unsigned int)subdims[1].y);
extraNew.vecLenB = umin(kextra->vecLenB, (unsigned int)subdims[1].y);
gset.pgran = pgran;
gset.kextra = &extraNew;
initKernelVarNames(&gset.varNames);
// multiplication options
mulOpts.memA = CLMEM_GLOBAL_MEMORY;
mulOpts.memB = CLMEM_GLOBAL_MEMORY;
mulOpts.core = (kextra->flags & KEXTRA_ENABLE_MAD) ? TILEMUL_MAD :
TILEMUL_MULADD;
mulOpts.postFetch = NULL;
mulOpts.flags = kextraToTilemulFlags(CLBLAS_TRSM, kflags);
mulOpts.flags |= TILEMUL_EXTERN_RDECL | TILEMUL_NOT_INC_K;
mulOpts.fctx = createFetchContext();
if (mulOpts.fctx == NULL) {
return -ENOMEM;
}
disableFetchOptLevels(mulOpts.fctx, FOPTLEV_TMP_COORD_PRECOMPUTING);
isInline = (gset.flags & BGF_EXPLICIT_INLINE);
initTiles(&gset, &tileSet, subdims, kflags, dtype,
PRIV_STORAGE_VARIABLE_SET);
ctx = createKgenContext(buf, buflen, true);
if (ctx == NULL) {
destroyFetchContext(mulOpts.fctx);
return -ENOMEM;
}
kgenAddStmt(ctx, "#pragma OPENCL EXTENSION cl_amd_printf : enable\n\n");
b = isDoubleBasedType(dtype);
kgenDeclareUptrs(ctx, b);
if (isComplexType(dtype)) {
genComplexMathOperators(ctx, dtype);
}
if(!isInline) {
genTileInverting(ctx, &gset, &tileSet);
}
if ( extraParams->ldsUse != LDS_NO_USE ) {
SubproblemDim sdims;
DBlockCopyFlags flags;
unsigned int vecLen;
if (!isMatrixAccessColMaj(CLBLAS_TRSM, kflags, MATRIX_B)) {
sdims.x = gset.subdims[1].bwidth * extraParams->unrollingFactor;
sdims.y = gset.subdims[0].x;
}
else {
sdims.x = gset.subdims[0].x;
sdims.y = gset.subdims[1].bwidth * extraParams->unrollingFactor;
}
vecLen = getVecLen(&gset, CLBLAS_TRSM, MATRIX_B);
flags = (vecLen < 4) ? DBLOCK_COPY_NOT_VECTORIZE : 0;
copyDataBlockGen(ctx, &sdims, gset.pgran, dtype,
DBLOCK_GLOBAL_TO_LOCAL, flags);
kgenAddBlankLine(ctx);
kgenGetLastFuncName(copy2LDSFuncName, FUNC_NAME_MAXLEN, ctx);
}
declareTrxmKernel(ctx, dtype, pgran, kflags, CLBLAS_TRSM, "Cached", false,
true);
kgenBeginFuncBody(ctx);
declareLocalVariables(ctx, &gset, &parTile, extraParams);
if (kflags & KEXTRA_A_OFF_NOT_ZERO) {
kgenAddStmt(ctx, "A += offA;\n");
}
genTrxmBMatrShift(ctx, kflags, false);
ptrName = dtypeUPtrField(dtype);
sprintf(tmp, "uB.%s = B;\n\n", ptrName);
kgenAddStmt(ctx, tmp);
// external loop
sprintf(tmp, "for (m0 = 0; m0 < M; m0 += %lu)", subdims[0].y);
kgenBeginBranch(ctx, tmp);
genZeroTile(ctx, &gset.tileCY);
genSetupCoords(ctx, &gset, BLOCK_UPDATE);
kgenAddStmt(ctx, "// Stage 1. Multiply and update with large blocks\n");
gset.tileA = tileSet.rectA;
gset.tileBX = tileSet.origB;
if (!isMatrixUpper(kflags) && tailM) {
addrMode |= FETCH_ADDR_A_CYCLICAL;
setFetchAddrMode(mulOpts.fctx, addrMode);
}
ldsLarge = ((extraParams->ldsUse & LDS_USE_LARGE) != 0);
alignK = subdims[1].bwidth;
if (ldsLarge) {
alignK *= extraParams->unrollingFactor;
}
if (ldsLarge) {
const char *oldCoordB;
FetchAddrMode bamode = addrMode | FETCH_ADDR_K_RELATIVE;
bool withSkew;
withSkew = useSkewedFetchB(&gset);
if (!withSkew) {
bamode |= FETCH_ADDR_B_RELATIVE;
}
else {
bamode |= FETCH_ADDR_B_CYCLICAL;
}
setFetchAddrMode(mulOpts.fctx, bamode);
if (tailN) {
/*
* Conditional branch for those items which hit into
* matrix B with their matrix coordinates
*/
sprintf(tmp, "if ((gid + 1) * %lu < N)", subdims[0].x);
kgenBeginBranch(ctx, tmp);
}
if (isMatrixAccessColMaj(CLBLAS_TRSM, kflags, MATRIX_A)) {
kgenPrintf(ctx, "uA.%s = A + k0 * lda;\n", ptrName);
}
else {
kgenPrintf(ctx, "uA.%s = A + k0;\n", ptrName);
}
if (withSkew) {
unsigned int bwidthOld;
oldCoordB = gset.varNames.coordB;
gset.varNames.coordB = "skewX";
bwidthOld = gset.subdims[0].bwidth;
gset.subdims[0].bwidth = (parTile.trans) ? parTile.nrRows :
parTile.nrCols;
gset.subdims[0].bwidth = bwidthOld;
}
genInternalLoopCtl(ctx, subdims, kflags, alignK, alignK);
genPreloadedTileMul(ctx, &gset, &mulOpts, &parTile, copy2LDSFuncName);
genInternalLoopEnd(ctx); // loop over K
if (withSkew) {
gset.varNames.coordB = oldCoordB;
setFetchAddrMode(mulOpts.fctx, bamode & ~FETCH_ADDR_B_CYCLICAL);
// deliver from skew in the result before proceed to the next stage
genTileCyclicalShift(ctx, &gset);
}
if (tailN) {
kgenEndBranch(ctx, NULL);
kgenBeginBranch(ctx, "else");
}
setFetchAddrMode(mulOpts.fctx, addrMode);
}
if (!ldsLarge || tailN) {
genCheckShiftTailB(ctx, &gset, 0, &tailStatus);
if ((kflags & KEXTRA_TAILS_N_LOWER) && !tailStatus) {
addrMode |= FETCH_ADDR_B_CYCLICAL;
setFetchAddrMode(mulOpts.fctx, addrMode);
}
if (tailN) {
sprintfHitMatrixCond(tmp, MATRIX_B, "if (", ")");
kgenBeginBranch(ctx, tmp);
}
genInternalLoopCtl(ctx, subdims, kflags, subdims[1].bwidth, alignK);
tileMulGen(ctx, &gset, &mulOpts);
genInternalLoopEnd(ctx); // loop over K
if (tailN) {
kgenEndBranch(ctx, NULL);
}
if (extraParams->ldsUse & LDS_USE_LARGE) {
kgenEndBranch(ctx, NULL);
}
}
sprintf(tmp, "uA.%s = A;\n\n", ptrName);
kgenAddStmt(ctx, tmp);
// processing tails along update dimension
if (isMatrixUpper(kflags) &&
((kflags & KEXTRA_TAILS_K_LOWER) ||
(ldsLarge && extraParams->unrolledTail))) {
unsigned int tailChunks;
tailChunks = (extraParams->ldsUse & LDS_USE_LARGE) ?
extraParams->unrolledTail : 1;
if (tailN) {
char hitCond[1024];
sprintfHitMatrixCond(hitCond, MATRIX_B, "(", ")");
sprintf(tmp, "if ((currM + %lu < M) && %s)",
subdims[0].y, hitCond);
}
else {
sprintf(tmp, "if (currM + %lu < M)", subdims[0].y);
}
kgenBeginBranch(ctx, tmp);
if (kflags & KEXTRA_TAILS_K_LOWER) {
setFetchAddrMode(mulOpts.fctx, addrMode | FETCH_ADDR_K_CYCLICAL);
setFetchHandler(&mulOpts, &gset, defaultTilePostFetch, &pfPriv);
}
if (tailChunks > 1) {
mulOpts.flags &= ~TILEMUL_NOT_INC_K;
sprintf(tmp, "for (uint k1 = 0; k1 < %u; k1++)", tailChunks);
kgenBeginBranch(ctx, tmp);
}
addrMode |= FETCH_ADDR_B_CYCLICAL;
setFetchAddrMode(mulOpts.fctx, addrMode);
tileMulGen(ctx, &gset, &mulOpts);
if (tailChunks > 1) {
kgenEndBranch(ctx, NULL);
mulOpts.flags |= TILEMUL_NOT_INC_K;
}
kgenEndBranch(ctx, NULL);
}
gset.tileA = tileSet.squareA;
kgenAddStmt(ctx, "\n/*\n"
" * Stage 2. A part of work items multiply got result on "
"a respective\n"
" * inverted diagonal block, and the remaining ones wait. "
"Then they perform\n"
" * one step of further intermediate result evaluation as "
"multiplying tile by tile.\n"
" * It continues until the whole panel of the "
"matrix A is processed\n"
" */\n");
// one must deal further with square blocks strictly
gset.subdims[0].bwidth = gset.subdims[1].bwidth = gset.subdims[1].y;
sprintf(tmp, "for (m1 = 0; m1 < %lu; m1++)", subdims[0].y / subdims[1].y);
kgenBeginBranch(ctx, tmp);
if (extraParams->ldsUse & LDS_USE_DIAGONAL) {
sprintf(tmp, "const int bid = lid %% %u;\n\n",
l1Pans);
kgenAddStmt(ctx, tmp);
}
/*
* Update the intermediate result multiply on the inverted diagonal tile,
* and write back
*/
genSetupCoords(ctx, &gset, TILE_UPDATE);
sprintfStage2Condition(tmp, &gset, 0);
ret = kgenBeginBranch(ctx, tmp);
upFlags = kextraToUpresFlags(CLBLAS_TRSM, kflags);
upFlags |= tailStatusToUpresFlags(tailStatus);
upFlags |= UPRES_PRIV_DEST | UPRES_WITH_BETA;
genUpdateIntermResult(ctx, &gset, false, upFlags);
kgenAddBlankLine(ctx);
lds_diagonal = ((extraParams->ldsUse & LDS_USE_DIAGONAL) &&
(kflags & (KEXTRA_COLUMN_MAJOR)) == 0 &&
!(tailM || tailN) &&
!(upFlags & UPRES_NO_VECTORIZATION) &&
!isComplexType(kextra->dtype));
/*
* it's needed now to adjust addressing mode of A so as to don't
* exceed the bound of A
*/
if (tailM) {
setFetchAddrMode(mulOpts.fctx,
addrMode | FETCH_ADDR_A_CYCLICAL |
FETCH_ADDR_K_CYCLICAL);
extraNew.flags |= KEXTRA_TAILS_K_LOWER;
}
genMulOnDiagonalTile(ctx, &gset, &tileSet, &mulOpts);
gset.tileBX = tileSet.bStage2;
if (tailM) {
setFetchHandler(&mulOpts, &gset, defaultTilePostFetch, &pfPriv);
}
kgenAddStmt(ctx, "// Write back the given result\n");
upFlags = kextraToUpresFlags(CLBLAS_TRSM, kflags);
upFlags |= tailStatusToUpresFlags(tailStatus);
if (lds_diagonal) {
sprintf(tmp, "tmpB[%%u * %u + bid]", l1Pans);
}
genResultUpdateWithFlags(ctx, CLBLAS_TRSM, &gset, upFlags,
NULL, NULL, lds_diagonal ? tmp : NULL);
kgenEndBranch(ctx, NULL); // multiply on the inverted tile path
kgenAddBarrier(ctx, CLK_GLOBAL_MEM_FENCE);
// continue the tile update
kgenAddBlankLine(ctx);
sprintfStage2Condition(tmp, &gset, 1);
kgenBeginBranch(ctx, tmp);
genCheckShiftTailB(ctx, &gset, 0, &tailStatus);
if (lds_diagonal) {
// TODO: add here storing to LDS as well
}
else {
addrMode |= FETCH_ADDR_B_CYCLICAL;
setFetchAddrMode(mulOpts.fctx, addrMode);
tileMulGen(ctx, &gset, &mulOpts);
}
kgenEndBranch(ctx, NULL); // tile update path
kgenAddBarrier(ctx, CLK_GLOBAL_MEM_FENCE);
kgenEndBranch(ctx, NULL); // second stage loop
if (isMatrixUpper(kflags)) {
sprintf(tmp, "currM -= %lu;\n", subdims[0].y);
kgenAddStmt(ctx, tmp);
}
kgenEndBranch(ctx, NULL); // loop over M
ret = kgenEndFuncBody(ctx);
if (!ret) {
ret = (ssize_t)kgenSourceSize(ctx) + 1;
}
destroyFetchContext(mulOpts.fctx);
destroyKgenContext(ctx);
return (ret < 0) ? -EOVERFLOW : ret;
}
static void
genTileInverting(
struct KgenContext *ctx,
const BlasGenSettings *gset,
const TileSet *tileSet)
{
char tmp[1024];
const CLBLASKernExtra *kextra = gset->kextra;
KernelExtraFlags kflags = kextra->flags;
DataType dtype = kextra->dtype;
const SubproblemDim *dim = &gset->subdims[1];
unsigned int accLen;
unsigned int i, j, k;
Tile srcTile;
Tile dstTile;
bool isU, isComplex;
bool isInlined = gset->flags & BGF_EXPLICIT_INLINE;
const char* typeNameA;
const char* typeNameB;
memcpy(&srcTile, &tileSet->bAsSqA, sizeof(srcTile));
memcpy(&dstTile, &tileSet->squareA, sizeof(dstTile));
getVectorTypeName(kextra->dtype, dstTile.vecLen, &typeNameA, NULL);
getVectorTypeName(kextra->dtype, srcTile.vecLen, &typeNameB, NULL);
isU = isMatrixUpper(kflags);
isComplex = isComplexType(dtype);
if (isComplex || dstTile.trans) {
accLen = 1;
}
else {
accLen = umin(srcTile.vecLen, dstTile.vecLen);
accLen = umin(accLen, srcTile.nrCols);
}
if (!isInlined) {
dstTile.baseName = "a";
srcTile.baseName = "b";
sprintf(tmp, "void\n"
"invertTile(%s *a, %s *b)\n",
typeNameA, typeNameB);
kgenDeclareFunction(ctx, tmp);
kgenBeginFuncBody(ctx);
}
else {
kgenAddStmt(ctx, "// Invert tile\n");
}
// made destination block unit
genZeroTile(ctx, &dstTile);
for (i = 0; i < dim->y; i++) {
genSetUnitInTile(ctx, &dstTile, i, i);
}
kgenAddBlankLine(ctx);
for (i = 0; i < dim->y; i++) {
Kstring src, srcDiag, dst, dstLast;
// current source diagonal element
sprintfInvertedElement(&srcDiag, &srcTile, i, i, 1, isU);
for (j = i; j < dim->y; j++) {
// current source non diagonal element
if (i) {
sprintfInvertedElement(&src, &srcTile, j, i - 1, 1, isU);
}
for (k = 0; k < dim->y; k += accLen) {
// current updated vectorized element
sprintfInvertedElement(&dst, &dstTile, j, k, accLen, isU);
// update
if (i) {
// last updated vectorized element
sprintfInvertedElement(&dstLast, &dstTile, i - 1, k,
accLen, isU);
if (isComplex) {
sprintf(tmp, "%s -= mul(%s, %s);\n",
dst.buf, dstLast.buf, src.buf);
}
else {
sprintf(tmp, "%s -= %s * %s;\n",
dst.buf, dstLast.buf, src.buf);
}
kgenAddStmt(ctx, tmp);
}
// divide on the diagonal element
if (j == i) {
if (isComplex) {
sprintf(tmp, "%s = div(%s, %s);\n",
dst.buf, dst.buf, srcDiag.buf);
}
else {
sprintf(tmp, "%s /= %s;\n", dst.buf, srcDiag.buf);
}
kgenAddStmt(ctx, tmp);
}
}
}
if (i != dim->y - 1) {
kgenAddBlankLine(ctx);
}
}
if (!isInlined) {
kgenEndFuncBody(ctx);
}
kgenAddBlankLine(ctx);
}
// Preparation function for images based kernel generator
static ssize_t
preparator(
char *buf,
size_t buflen,
const struct SubproblemDim *subdims,
const struct PGranularity *pgran,
void *extra)
{
struct KgenContext *ctx;
char tmp[4096], conjStr[1024];
CLBLASKernExtra *kextra = (CLBLASKernExtra*)extra;
CopyImgFuncs copyImgFuncs;
DataType dtype = kextra->dtype;
BlasGenSettings gset;
unsigned int vecLen;
unsigned int tsize;
const char *typeName;
char fpref;
bool b;
size_t localBufSize;
ssize_t ret;
const char *conjCond;
const char *functionHeadA =
"int tra, aligned;\n"
"const uint bpr = (K + %lu) / %lu;\n"
"uint m = (gid / bpr) * %lu;\n"
"uint k = (gid %% bpr) * %lu;\n"
"uint x, y;\n"
"__local %s temp[%lu];\n"
"\n"
"A += offsetA;\n"
"tra = (!transA && order == clblasColumnMajor) ||\n"
" (transA && order == clblasRowMajor);\n"
"if (m >= M) {\n"
" return;\n"
"}\n";
const char *functionHeadB =
"int trb, aligned;\n"
"const uint bpr = (K + %lu) / %lu;\n"
"const uint n = (gid / bpr) * %lu;\n"
"const uint k = (gid %% bpr) * %lu;\n"
"uint x, y;\n"
"__local %s temp[%lu];\n"
"\n"
"B += offsetB;\n"
"trb = (!transB && order == clblasRowMajor) ||\n"
" (transB && order == clblasColumnMajor);\n"
"if (n >= N) {\n"
" return;\n"
"}\n";
// Distribute blocks across compute units and copy matrix A to image.
// Transposition and filling with zeros in unaligned cases is made using
// buffer in local memory.
const char *copyToImageA =
"//copy matrix A block\n"
"y = m + %u <= M ? %u : M - m;\n"
"x = k + %u <= K ? %u : K - k;\n"
"aligned = (x == %u) && (y == %u) && %d;\n"
"int atcase = aligned * 10 + tra;\n"
"%s" // conjugated check
"if (atcase != 10) {\n"
" %s((__local float4*)temp);\n"
" barrier(CLK_LOCAL_MEM_FENCE);\n"
"}\n"
"switch(atcase) {\n"
"case 10: //aligned, not transposed\n"
" %s(imgA, k / %u, m, (GPtr)A, m, k, lda);\n"
" break;\n"
"%s" // conjugated case
"case 1: //not aligned, transposed\n"
" // generic transposed global to local\n"
" %s((LPtr)temp, (GPtr)A, k, m, x, y, %u, lda);\n"
" break;\n"
"case 0: //not aligned, not transposed\n"
" // generic global to local\n"
" %s((LPtr) temp, (GPtr)A, m, k, y, x, %u, lda);\n"
" break;\n"
"case 11: //aligned, transposed\n"
" // optimized transposed global to local\n"
" %s((LPtr) temp, (GPtr)A, k, m, lda);\n"
" break;\n"
"}\n"
"if (atcase != 10) {\n"
" barrier(CLK_LOCAL_MEM_FENCE);\n"
" %s(imgA, k / %u, m, (LPtr) temp);\n"
"}\n"
"\n";
const char *copyToImageB =
"//copy matrix B block\n"
"y = n + %u <= N ? %u : N - n;\n"
"x = k + %u <= K ? %u : K - k;\n"
"aligned = (x == %u) && (y == %u) && %d;\n"
"int atcase = aligned * 10 + trb;\n"
"%s" // conjugated check
"if (atcase != 10) {\n"
" %s((__local float4*)temp);\n"
" barrier(CLK_LOCAL_MEM_FENCE);\n"
"}\n"
"switch (atcase) {\n"
"case 10: //aligned, not transposed\n"
" %s(imgB, k / %u, n, (GPtr)B, n, k, ldb);\n"
" break;\n"
"%s" // conjugated case
"case 1: //not aligned, transposed\n"
" // generic transposed global to local\n"
" %s((LPtr)temp, (GPtr)B, k, n, x, y, %u, ldb);\n"
" break;\n"
"case 0: //not aligned, not transposed\n"
" // generic global to local\n"
" %s((LPtr)temp, (GPtr)B, n, k, y, x, %u, ldb);\n"
" break;\n"
"case 11: //transposed, aligned\n"
" // optimized transposed global to local\n"
" %s((LPtr)temp, (GPtr)B, k, n, ldb);\n"
" break;\n"
"}\n"
"if (atcase != 10) {\n"
" barrier(CLK_LOCAL_MEM_FENCE);\n"
" %s(imgB, k / %u, n, (LPtr)temp);\n"
"}\n"
"\n";
memset(©ImgFuncs, 0, sizeof(copyImgFuncs));
memset(&gset, 0, sizeof(gset));
ctx = createKgenContext(buf, buflen, true);
if (ctx == NULL) {
return -ENOMEM;
}
tsize = dtypeSize(dtype);
b = isDoubleBasedType(dtype);
kgenDeclareUptrs(ctx, b);
declareBlasEnums(ctx);
memcpy(gset.subdims, subdims, sizeof(gset.subdims));
gset.kextra = kextra;
gset.pgran = pgran;
// generate necessary memory to image copying functions
generateImageCopyFuncs(©ImgFuncs, ctx, CLBLAS_GEMM, &gset);
kgenAddBlankLine(ctx);
vecLen = sizeof(cl_float4) / dtypeSize(dtype);
typeName = dtypeBuiltinType(dtype);
fpref = dtypeToBlasPrefix(dtype);
if (kextra->kernType == CLBLAS_PREP_A_KERNEL) {
sprintf(tmp, prepareImagesGemmDeclA, fpref, typeName, typeName);
kgenDeclareFunction(ctx, tmp);
ret = kgenBeginFuncBody(ctx);
// same local buffer is used for both matrix A and matrix B blocks
localBufSize = subdims[1].y * fl4RowWidth(subdims[1].bwidth, tsize);
localBufSize *= vecLen;
kgenDeclareGroupID(ctx, "gid", pgran);
sprintf(tmp, functionHeadA,
subdims[1].bwidth - 1, subdims[1].bwidth,
subdims[1].y, subdims[1].bwidth,
typeName, localBufSize);
kgenAddStmt(ctx, tmp);
if (isComplexType(dtype)) {
conjCond = "atcase += ((atcase == 10) && "
"(transA == clblasConjTrans)) ? 100 : 0;\n";
sprintf(conjStr, "case 110: //conjugated, not transposed, aligned\n"
" %s((LPtr)temp, (GPtr)A, m, k, lda);\n"
" break;\n",
copyImgFuncs.globalToLocal[MATRIX_A]);
}
else {
conjCond = "";
strcpy(conjStr, "");
}
sprintf(tmp, copyToImageA,
subdims[1].y, subdims[1].y, // y = m + dy <= M ?...
subdims[1].bwidth, subdims[1].bwidth, // x = k + bw <= K ?...
subdims[1].bwidth, subdims[1].y, // aligned = (x==bw1)&&(y==dy1)
(kextra->flags & KEXTRA_NO_COPY_VEC_A) == 0,
conjCond,
copyImgFuncs.zeroBlock[MATRIX_A],
copyImgFuncs.globalToImage[MATRIX_A],
vecLen,
conjStr,
copyImgFuncs.globalToLocalTransposedGeneric[MATRIX_A],
subdims[1].bwidth,
copyImgFuncs.globalToLocalGeneric[MATRIX_A],
subdims[1].bwidth,
copyImgFuncs.globalToLocalTransposed[MATRIX_A],
copyImgFuncs.localToImage[MATRIX_A],
vecLen);
kgenAddStmt(ctx, tmp);
}
else { // PREP_B
sprintf(tmp, prepareImagesGemmDeclB, fpref, typeName, typeName);
kgenDeclareFunction(ctx, tmp);
ret = kgenBeginFuncBody(ctx);
// same local buffer is used for both matrix A and matrix B blocks
localBufSize = subdims[1].x * fl4RowWidth(subdims[1].bwidth, tsize);
localBufSize *= vecLen;
kgenDeclareGroupID(ctx, "gid", pgran);
sprintf(tmp, functionHeadB,
subdims[1].bwidth - 1, subdims[1].bwidth,
subdims[1].x, subdims[1].bwidth,
typeName, localBufSize);
kgenAddStmt(ctx, tmp);
if (isComplexType(dtype)) {
conjCond = "atcase += ((atcase == 10) && "
"(transB == clblasConjTrans)) ? 100 : 0;\n";
sprintf(conjStr, "case 110: //conjugated, not transposed, aligned\n"
" %s((LPtr)temp, (GPtr)B, n, k, ldb);\n"
" break;\n",
copyImgFuncs.globalToLocal[MATRIX_B]);
}
else {
conjCond = "";
strcpy(conjStr, "");
}
sprintf(tmp, copyToImageB,
subdims[1].x, subdims[1].x, // y = n + dy <= N ?...
subdims[1].bwidth, subdims[1].bwidth, // x = k + bw <= K ?...
subdims[1].bwidth, subdims[1].x, // aligned = (x==bw1)&&(y==dx1)
(kextra->flags & KEXTRA_NO_COPY_VEC_B) == 0,
conjCond,
copyImgFuncs.zeroBlock[MATRIX_B],
copyImgFuncs.globalToImage[MATRIX_B],
vecLen,
conjStr,
copyImgFuncs.globalToLocalTransposedGeneric[MATRIX_B],
subdims[1].bwidth,
copyImgFuncs.globalToLocalGeneric[MATRIX_B],
subdims[1].bwidth,
copyImgFuncs.globalToLocalTransposed[MATRIX_B],
copyImgFuncs.localToImage[MATRIX_B],
vecLen);
kgenAddStmt(ctx, tmp);
}
kgenEndFuncBody(ctx);
ret = kgenAddBlankLine(ctx);
if (!ret) {
ret = (ssize_t)kgenSourceSize(ctx) + 1;
}
destroyKgenContext(ctx);
return (ret < 0) ? -EOVERFLOW : ret;
}
// global memory based kernel generator
static ssize_t
generator(
char *buf,
size_t buflen,
const struct SubproblemDim *subdims,
const struct PGranularity *pgran,
void *extra)
{
struct KgenContext *ctx;
CLBLASKernExtra *kextra = (CLBLASKernExtra*)extra;
char tmp[4096], tmp1[4096];
char *p;
// is the iteration over N, N at the top level
const char *typeName;
char fpref;
DataType dtype = kextra->dtype;
ssize_t ret;
BlasGenSettings gset;
BlkMulOpts mulOpts;
unsigned int tsize;
unsigned int vecLen, outVecLen;
bool b;
const char *outTypeName;
unsigned int i;
unsigned int nrRegs, regPitch;
int tra, trb;
char vect[2] = {'y', 'x'};
const char *coordConstants =
"const uint workItemM = get_global_id(0) * %lu;\n"
"const uint workItemN = get_global_id(1) * %lu;\n"
"const int2 skewRow = (int2)(0, get_local_id(0) %% %lu);\n"
"uint vectK = (K + %u) / %u;\n";
/*
* template for image based gemm preparation part
* for two dimensional work space
*/
const char *localVariables =
"uint k0;\n"
"int2 coordA = (int2)(0, workItemM);\n"
"int2 coordB = (int2)(0, workItemN);\n"
"%s c[%u];\n\n";
tsize = dtypeSize(dtype);
vecLen = sizeof(cl_float4) / dtypeSize(dtype);
if (isComplexType(dtype)) {
regPitch = (unsigned int)subdims[1].x;
}
else {
regPitch = (unsigned int) fl4RowWidth(subdims[1].x, tsize) *
sizeof(cl_float4) / tsize;
}
memset(&gset, 0, sizeof(gset));
memcpy(gset.subdims, subdims, sizeof(gset.subdims));
gset.kextra = kextra;
gset.pgran = pgran;
initKernelVarNames(&gset.varNames, kextra->flags);
ctx = createKgenContext(buf, buflen, true);
if (ctx == NULL) {
return -ENOMEM;
}
// at first, generate needed declarations and auxiliary functions
b = isDoubleBasedType(dtype);
kgenDeclareUptrs(ctx, b);
typeName = dtypeBuiltinType(dtype);
fpref = dtypeToBlasPrefix(dtype);
// now, generate the kernel
sprintf(tmp, imgGemmDecl, pgran->wgSize[0], pgran->wgSize[1], fpref,
typeName, typeName, typeName);
kgenDeclareFunction(ctx, tmp);
ret = kgenBeginFuncBody(ctx);
// constants
sprintf(tmp, coordConstants,
subdims[1].y, subdims[1].x, subdims[1].y,
vecLen - 1, vecLen);
kgenAddStmt(ctx, tmp);
/*
* Calculate local buffer pitches, and then declare local
* variables
*/
getResultGPRsInfo(dtype, &subdims[1], vecLen, &nrRegs, &outTypeName);
sprintf(tmp, localVariables, outTypeName, nrRegs);
kgenAddStmt(ctx, tmp);
// check if offset exceeds matrix
kgenAddStmt(ctx, "if ((workItemM >= M) ||"
"(workItemN >= N)) {\n"
" return;\n"
"}\n");
kgenAddStmt(ctx, "C += offsetC;\n");
// zero C block
sprintf(tmp, "for (k0 = 0; k0 < %u; k0++) {\n"
" c[k0] = 0;\n"
"}\n\n",
nrRegs);
kgenAddStmt(ctx, tmp);
// block multiplication inlined function
sprintf(tmp, "for (k0 = 0; k0 < vectK; k0 += %lu)",
subdims[1].bwidth / vecLen);
kgenBeginBranch(ctx, tmp);
mulOpts.aMobj = CLMEM_IMAGE;
mulOpts.bMobj = CLMEM_IMAGE;
mulOpts.flags = BLKMUL_OUTPUT_PRIVATE | BLKMUL_SKEW_ROW | BLKMUL_INLINE;
if (isComplexType(dtype)) {
mulOpts.core = BLKMUL_SEPARATE_MULADD;
}
else {
mulOpts.core = BLKMUL_MAD;
}
mulOpts.argNames.coordA = "coordA";
mulOpts.argNames.coordB = "coordB";
mulOpts.argNames.skewCol = "skewCol";
mulOpts.argNames.skewRow = "skewRow";
mulOpts.argNames.k = "k0";
mulOpts.argNames.vectBoundK = "vectK";
ret = blkMulGen(ctx, subdims, dtype, &mulOpts);
if (ret) {
destroyKgenContext(ctx);
return -EOVERFLOW;
}
// update image coordinates
sprintf(tmp, "\ncoordA.x += %lu;\n"
"coordB.x += %lu;\n",
subdims[1].bwidth / vecLen, subdims[1].bwidth / vecLen);
kgenAddStmt(ctx, tmp);
kgenEndBranch(ctx, NULL);
// reorder the given solution
outVecLen = isComplexType(dtype) ? 1 : vecLen;
p = tmp1;
for (i = 0; i < regPitch / outVecLen; i++) {
unsigned int k = (unsigned int)(subdims[1].y - 1) *
regPitch / outVecLen + i;
sprintf(p, "\n"
" tmp = c[%u];\n"
" for (j = %lu; j >= 0; j--) {\n"
" c[(j+1) * %u + %u] = c[j * %u + %u];\n"
" }\n"
" c[%u] = tmp;\n",
k, subdims[1].y - 2, regPitch / outVecLen,
i, regPitch / outVecLen, i, i);
p += strlen(p);
}
sprintf(tmp, "\n"
"for (k0 = 0; k0 < skewRow.y; k0++) {\n"
" int j;\n"
" %s tmp;\n"
"%s"
"}\n"
"\n",
outTypeName, tmp1);
kgenAddStmt(ctx, tmp);
tra = isMatrixAccessColMaj(CLBLAS_GEMM, kextra->flags, MATRIX_A);
trb = isMatrixAccessColMaj(CLBLAS_GEMM, kextra->flags, MATRIX_B);
sprintf(tmp, "coordA.%c = workItemM;\n"
"coordB.%c = workItemN;\n\n",
vect[tra], vect[trb]);
kgenAddStmt(ctx, tmp);
// write back the tile evaluated
generateResultUpdateOld(ctx, CLBLAS_GEMM, &gset, NULL, NULL);
kgenEndFuncBody(ctx);
ret = kgenAddBlankLine(ctx);
if (!ret) {
ret = (ssize_t)kgenSourceSize(ctx) + 1;
}
destroyKgenContext(ctx);
return (ret < 0) ? -EOVERFLOW : ret;
}
void
genInvertingBlockFunc(
struct KgenContext *ctx,
size_t pitch,
DataType dtype,
KernelExtraFlags kflags)
{
char tmp[1024];
const char *ctype;
ctype = dtypeBuiltinType(dtype);
sprintf(tmp, "void\ninvert(__local %s *src, __local %s *dst, int lid, "
"int lastRow)\n", ctype, ctype);
kgenDeclareFunction(ctx, tmp);
kgenBeginFuncBody(ctx);
kgenAddStmt(ctx, "int i, k;\n");
if (isComplexType(dtype)) {
sprintf(tmp, "dst[lid * %lu + lid].x = 1.f;\n", pitch);
}
else {
sprintf(tmp, "dst[lid * %lu + lid] = 1.f;\n", pitch);
}
kgenAddStmt(ctx, tmp);
if (isMatrixUpper(kflags)) {
sprintf(tmp, "for (i = lastRow - 1; i >= 0; i--)");
}
else {
sprintf(tmp, "for (i = 0; i < lastRow; i++)");
}
kgenBeginBranch(ctx, tmp);
if (isComplexType(dtype)) {
sprintf(tmp, "dst[i * %lu + lid] = div(dst[i * %lu + lid], "
"src[i * %lu + i]);\n", pitch, pitch, pitch);
}
else {
sprintf(tmp, "dst[i * %lu + lid] = dst[i * %lu + lid] / "
"src[i * %lu + i];\n", pitch, pitch, pitch);
}
kgenAddStmt(ctx, tmp);
if (isMatrixUpper(kflags)) {
sprintf(tmp, "for (k = 0; k < i; k++)");
}
else {
sprintf(tmp, "for (k = i + 1; k < %lu; k++)", pitch);
}
kgenBeginBranch(ctx, tmp);
if (isComplexType(dtype)) {
sprintf(tmp, "dst[k * %lu + lid] = dst[k * %lu + lid] - "
"mul(src[k * %lu + i], dst[i * %lu + lid]);\n",
pitch, pitch, pitch, pitch);
}
else {
sprintf(tmp, "dst[k * %lu + lid] = dst[k * %lu + lid] - "
"dst[i * %lu + lid] * src[k * %lu + i];\n",
pitch, pitch, pitch, pitch);
}
kgenAddStmt(ctx, tmp);
kgenEndBranch(ctx, NULL);
kgenEndBranch(ctx, NULL);
kgenEndFuncBody(ctx);
}
// global memory based kernel generator
static ssize_t
generator(
char *buf,
size_t buflen,
const struct SubproblemDim *subdims,
const struct PGranularity *pgran,
void *extra)
{
struct KgenContext *ctx;
CLBLASKernExtra *kextra = (CLBLASKernExtra*)extra;
KernelExtraFlags kflags = kextra->flags;
bool upper = ((kflags & KEXTRA_UPPER_TRIANG) != 0) ^
((kflags & KEXTRA_COLUMN_MAJOR) != 0);
char tmp[2048];
const char *typeName;
DataType dtype = kextra->dtype;
BlasGenSettings gset, tgset, lset, gset1;
CLBLASKernExtra kextraTmp;
TileMulOpts mulOpts, tmulOpts;
KernelVarNames *vnames = &gset.varNames;
ssize_t ret;
size_t vecLen = kextra->vecLen;
const char *outTypeName;
bool b;
TilePostFetchPrivate pfPriv;
struct symvPrivate priv;
size_t wgSize;
bool tailM = (kflags & KEXTRA_TAILS_M) != 0;
bool tailK = (kflags & KEXTRA_TAILS_K) != 0;
bool tra = (kflags & KEXTRA_COLUMN_MAJOR) != 0;
bool rowMaj = !isMatrixAccessColMaj(CLBLAS_SYMV, kflags, MATRIX_A);
bool isComplex = isComplexType(dtype);
Tile tileb;
const char *gid = "get_group_id(0)";
const char *lid = "get_local_id(0)";
bool isHoriz = subdims[1].bwidth >= subdims[1].y;
unsigned int bStep = subdims[0].bwidth / subdims[1].bwidth;
unsigned int cLocal;
unsigned int nPlans;
wgSize = (subdims[0].y / subdims[1].y) *
(subdims[0].bwidth / subdims[1].bwidth);
assert(pgran->wgSize[0] == wgSize);
assert(subdims[0].x == 1);
assert(subdims[1].x == 1);
memset(&gset, 0, sizeof(gset));
memset(&mulOpts, 0, sizeof(mulOpts));
memset(&pfPriv, 0, sizeof(pfPriv));
memset(&priv, 0, sizeof(priv));
ctx = createKgenContext(buf, buflen, true);
if (ctx == NULL) {
return -ENOMEM;
}
// at first, generate needed declarations
b = isDoubleBasedType(dtype);
kgenDeclareUptrs(ctx, b);
typeName = dtypeBuiltinType(dtype);
declareSymvKernel(ctx, dtype, pgran, kflags);
ret = kgenBeginFuncBody(ctx);
/* 1D work space. Matrix is divided among wi, each calculates it's own
* part of vector y */
kgenAddStmt(ctx, "#define M actualN\n");
memcpy(gset.subdims, subdims, sizeof(gset.subdims));
gset.subdims[0].itemX = gset.subdims[0].x = 1;
gset.subdims[1].itemX = gset.subdims[1].x = 1;
gset.subdims[0].bwidth = gset.subdims[1].bwidth;
gset.flags |= BGF_WHOLE_A | BGF_UPTRS;
gset.kextra = kextra;
gset.pgran = pgran;
initDefaultTiles(&gset, CLBLAS_SYMV, 0, PRIV_STORAGE_VARIABLE_SET);
gset.tileA.vecLen = umin(8u, tra ? gset.tileA.nrCols : gset.tileA.nrRows);
if (isComplex) {
gset.tileCY.vecLen = 1;
}
declareTileStorages(ctx, &gset);
genZeroTile(ctx, &gset.tileCY);
getVectorTypeName(dtype, gset.tileCY.vecLen, &outTypeName, NULL);
cLocal = wgSize / bStep;
nPlans = gset.tileCY.nrRows / gset.tileCY.vecLen;
sprintf(tmp, "__local %s localRes[%u][%u];\n",
outTypeName, pgran->wgSize[0], nPlans);
kgenAddStmt(ctx, tmp);
sprintf(tmp, "uint coordA = (%s * %u + %s / %u) * %lu + startN;\n",
gid, cLocal, lid, bStep, subdims[1].y);
kgenAddStmt(ctx, tmp);
sprintf(tmp, "uint n = coordA;\n");
kgenAddStmt(ctx, tmp);
sprintf(tmp, "uint k0 = (%s %% %u) * %lu;\n",
lid, bStep, subdims[1].bwidth);
kgenAddStmt(ctx, tmp);
kgenAddStmt(ctx, "actualN += startN;\n");
kgenAddBlankLine(ctx);
kgenBeginBranch(ctx,"if (coordA < actualN && k0 < N)");
genIncPointers(ctx, kflags);
sprintf(tmp,
"const GPtr Ag = {(__global %s*)A};\n"
"const GPtr Xg = {(__global %s*)X};\n",
typeName, typeName);
kgenAddStmt(ctx, tmp);
kgenAddBlankLine(ctx);
kgenAddStmt(ctx, "uint k = k0;\n");
if (tailK) {
sprintf(tmp, "uint Ntail = N %% %lu;\n", subdims[1].bwidth);
kgenAddStmt(ctx, tmp);
sprintf(tmp, "uint Ktail = N %% %lu;\n\n", subdims[1].y);
kgenAddStmt(ctx, tmp);
kgenBeginBranch(ctx, "if (n + Ktail < N)");
kgenAddStmt(ctx, "N -= Ntail;\n");
kgenAddBlankLine(ctx);
}
mulOpts.flags |= TILEMUL_OPTIMIZE_COORD_CALC;
if (tailM) {
vnames->sizeM = "N";
}
vnames->A = "Ag";
vnames->B = "Xg";
vnames->coordA = "coordA";
vnames->coordB = ""; //should not be used for vector
vnames->k = "k";
vnames->lda = "lda";
vnames->sizeK = "N";
vnames->sizeM = "N";
mulOpts.flags |= TILEMUL_NOT_FETCH_B | TILEMUL_TRB | TILEMUL_NOT_INC_K;
if ((kflags & KEXTRA_CONJUGATE_A) != 0) {
mulOpts.flags |= TILEMUL_CONJA;
}
if ((kflags & KEXTRA_ENABLE_MAD) != 0) {
mulOpts.core = TILEMUL_MAD;
}
else {
mulOpts.core = TILEMUL_MULADD;
}
mulOpts.memA = CLMEM_GLOBAL_MEMORY;
mulOpts.memB = CLMEM_GLOBAL_MEMORY;
if (rowMaj) {
mulOpts.flags |= TILEMUL_BW_STRIDE;
}
if (upper) {
kgenAddStmt(ctx, "// k loop over column from the beginning of the column till the diagonal\n");
}
else {
kgenAddStmt(ctx, "// k loop over row from the beginning of the row till the diagonal\n");
}
sprintf(tmp, "for (; k < n/%lu*%lu; k += %lu)",
subdims[1].bwidth, subdims[1].bwidth, bStep*subdims[1].bwidth);
kgenBeginBranch(ctx, tmp);
genFetchX(ctx, &gset.tileBX, gset.kextra->vecLen, dtype, vnames,
mulOpts.flags, kflags);
upper ^= rowMaj;
tra ^= rowMaj;
if (upper ^ rowMaj && tra) {
mulOpts.flags |= TILEMUL_TRA;
}
gset.tileA.trans ^= !upper;
tgset = gset;
tmulOpts = mulOpts;
ret = tileMulGen(ctx, &gset, &mulOpts);
if (ret != 0) {
return ret;
}
kgenEndBranch(ctx, NULL); /* k loop */
if (tailK)
{
kextraTmp = *kextra;
gset1 = gset;
kextraTmp.vecLen = 1;
gset1.kextra = &kextraTmp;
gset1.subdims[0].bwidth = gset1.subdims[1].bwidth = 1;
gset1.tileBX.nrRows = 1;
gset1.tileA.nrCols = 1;
kextraTmp.vecLenA = 1;
}
if (isHoriz)
{
lset = gset;
lset.subdims[0].bwidth = lset.subdims[1].bwidth =
lset.subdims[1].y = umin(subdims[1].bwidth, subdims[1].y);
lset.tileA.nrCols = lset.tileA.nrRows =
lset.tileBX.nrRows = lset.subdims[1].y;
kgenAddStmt(ctx, "// the diagonal\n");
kgenBeginBranch(ctx, "if (k <= n)");
kgenAddStmt(ctx, "uint k1 = k;\n");
if (subdims[1].bwidth != subdims[1].y) {
kgenAddStmt(ctx, "// the pred diagonal\n");
sprintf(tmp, "for (; k < n; k += %lu)", lset.subdims[1].bwidth);
kgenBeginBranch(ctx, tmp);
genFetchX(ctx, &lset.tileBX, lset.subdims[1].bwidth, dtype, vnames,
mulOpts.flags, kflags);
ret = tileMulGen(ctx, &lset, &mulOpts);
if (ret != 0) {
return ret;
}
kgenEndBranch(ctx, NULL); /* k loop */
}
initTile(&tileb, "b", lset.subdims[1].bwidth, lset.subdims[1].bwidth,
lset.subdims[1].bwidth, lset.tileA.dtype, PRIV_STORAGE_VARIABLE_SET,
lset.tileA.trans, lset.tileA.packed);
declareOneTileStorage(ctx, &tileb);
genFetchX(ctx, &lset.tileBX, lset.subdims[1].bwidth, dtype, vnames,
mulOpts.flags, kflags);
priv.mulOpts = &mulOpts;
priv.pfPriv = &pfPriv;
priv.tilea = lset.tileA;
priv.diag = false;
pfPriv.funcID = CLBLAS_SYMV;
pfPriv.gset = &lset;
lset.tileA = tileb;
mulOpts.postFetch = genPostFetchMirror;
mulOpts.postFetchPriv = &priv;
ret = tileMulGen(ctx, &lset, &mulOpts);
if (ret != 0) {
return ret;
}
if (upper ^ rowMaj && tra) {
mulOpts.flags &= ~TILEMUL_TRA;
}
else {
mulOpts.flags |= TILEMUL_TRA;
}
gset.tileA.trans = lset.tileA.trans ^= true;
mulOpts.postFetch = NULL;
mulOpts.postFetchPriv = NULL;
if (subdims[1].bwidth != subdims[1].y) {
size_t width = umax(subdims[1].bwidth, subdims[1].y);
kgenAddStmt(ctx, "// the post diagonal\n");
if (tailK) {
kgenBeginBranch(ctx, "if(k < N)");
}
sprintf(tmp, "for (k += %lu; k < n/%lu*%lu+%lu; k += %lu)",
lset.subdims[1].bwidth,
width, width, width,
lset.subdims[1].bwidth);
kgenBeginBranch(ctx, tmp);
genFetchX(ctx, &lset.tileBX, lset.subdims[1].bwidth, dtype, vnames,
mulOpts.flags, kflags);
ret = tileMulGen(ctx, &lset, &mulOpts);
if (ret != 0) {
return ret;
}
kgenEndBranch(ctx, NULL); /* k loop */
if (tailK) {
kgenEndBranch(ctx, NULL);
kgenBeginBranch(ctx, "else");
/* Handle tail along vector X */
kgenAddStmt(ctx, "N += Ntail;\n");
mulOpts.flags |= TILEMUL_GLOBAL_CYCLIC_A;
#if 1
sprintf(tmp, "for (k += %lu; k < actualN; k++)",
lset.subdims[1].bwidth);
kgenBeginBranch(ctx, tmp);
gset1.tileA.trans = gset.tileA.trans;
genFetchX(ctx, &gset1.tileBX, gset1.kextra->vecLen, dtype, vnames,
mulOpts.flags, kflags);
ret = tileMulGen(ctx, &gset1, &mulOpts);
if (ret != 0) {
return ret;
}
kgenEndBranch(ctx, NULL); /* k loop for tails along vector X */
#else
mulOpts.flags |= TILEMUL_SKEW_B | TILEMUL_NOT_INC_K;
genFetchX(ctx, &gset.tileBX, gset.kextra->vecLen, dtype, vnames,
mulOpts.flags, kflags);
ret = tileMulGen(ctx, &gset, &mulOpts);
if (ret != 0) {
return ret;
}
#endif
mulOpts.flags &= ~TILEMUL_GLOBAL_CYCLIC_A;
kgenEndBranch(ctx, NULL);
}
}
sprintf(tmp, "k = k1 + %lu;\n", bStep*subdims[1].bwidth);
kgenAddStmt(ctx, tmp);
kgenEndBranch(ctx, NULL);
}
else
{
kgenAddStmt(ctx, "// the diagonal\n");
sprintf(tmp, "if (k <= (n + (get_local_id(0)%%%lu)*%lu))",
subdims[1].y/subdims[1].bwidth, subdims[1].bwidth);
kgenBeginBranch(ctx, tmp);
genFetchX(ctx, &gset.tileBX, gset.subdims[1].bwidth, dtype, vnames,
mulOpts.flags, kflags);
kgenBeginBranch(ctx, NULL);
priv.mulOpts = &mulOpts;
priv.pfPriv = &pfPriv;
priv.diag = true;
pfPriv.funcID = CLBLAS_SYMV;
pfPriv.gset = &gset;
mulOpts.postFetch = genPostFetchVertDiag;
mulOpts.postFetchPriv = &priv;
ret = tileMulGen(ctx, &gset, &mulOpts);
if (ret != 0) {
return ret;
}
kgenEndBranch(ctx, NULL);
if (upper ^ rowMaj && tra) {
mulOpts.flags &= ~TILEMUL_TRA;
}
else {
mulOpts.flags |= TILEMUL_TRA;
}
gset.tileA.trans ^= true;
lset = gset;
sprintf(tmp, "n += (get_local_id(0)%%%lu)*%lu;\n",
subdims[1].y/subdims[1].bwidth, subdims[1].bwidth);
kgenAddStmt(ctx, tmp);
kgenBeginBranch(ctx, NULL);
priv.diag = false;
ret = tileMulGen(ctx, &gset, &mulOpts);
if (ret != 0) {
return ret;
}
kgenEndBranch(ctx, NULL);
mulOpts.postFetch = NULL;
mulOpts.postFetchPriv = NULL;
sprintf(tmp, "k += %lu;\n", bStep*subdims[1].bwidth);
kgenAddStmt(ctx, tmp);
kgenEndBranch(ctx, NULL); /* if */
}
if (upper) {
kgenAddStmt(ctx, "// k loop over row from the diagonal till the right\n");
}
else {
kgenAddStmt(ctx, "// k loop over column from the diagonal till the bottom\n");
}
sprintf(tmp, "for (; k < N; k += %lu)", bStep*subdims[1].bwidth);
kgenBeginBranch(ctx, tmp);
genFetchX(ctx, &gset.tileBX, gset.kextra->vecLen, dtype, vnames,
mulOpts.flags, kflags);
ret = tileMulGen(ctx, &gset, &mulOpts);
if (ret != 0) {
return ret;
}
kgenEndBranch(ctx, NULL); /* k loop */
if (tailK) {
/* Handle tail along vector X */
kgenAddStmt(ctx, "N += Ntail;\n");
mulOpts.flags |= TILEMUL_GLOBAL_CYCLIC_A;
#if 1
sprintf(tmp, "for (; k < N; k++)");
kgenBeginBranch(ctx, tmp);
gset1.tileA.trans = gset.tileA.trans;
genFetchX(ctx, &gset1.tileBX, gset1.kextra->vecLen, dtype, vnames,
mulOpts.flags, kflags);
ret = tileMulGen(ctx, &gset1, &mulOpts);
if (ret != 0) {
return ret;
}
kgenEndBranch(ctx, NULL); /* k loop for tails along vector X */
#else
mulOpts.flags |= TILEMUL_SKEW_B | TILEMUL_NOT_INC_K;
genFetchX(ctx, &gset.tileBX, gset.kextra->vecLen, dtype, vnames,
mulOpts.flags, kflags);
ret = tileMulGen(ctx, &gset, &mulOpts);
if (ret != 0) {
return ret;
}
#endif
kgenEndBranch(ctx, NULL);
kgenBeginBranch(ctx, "else");
sprintf(tmp, "for (; k < N; k += %lu)", bStep*subdims[1].bwidth);
kgenBeginBranch(ctx, tmp);
tmulOpts.flags |= TILEMUL_SKEW_B | TILEMUL_GLOBAL_CYCLIC_A;
genFetchX(ctx, &tgset.tileBX, tgset.kextra->vecLen, dtype, vnames,
tmulOpts.flags, kflags);
priv.mulOpts = &tmulOpts;
priv.pfPriv = &pfPriv;
pfPriv.gset = &tgset;
priv.diag = false;
pfPriv.funcID = CLBLAS_SYMV;
tmulOpts.postFetch = genPostFetchDiag;
tmulOpts.postFetchPriv = &priv;
ret = tileMulGen(ctx, &tgset, &tmulOpts);
if (ret != 0) {
return ret;
}
if (isHoriz) {
sprintf(tmp, "if (k + %lu > N) break;\n", subdims[1].bwidth);
}
else {
sprintf(tmp, "if (k + %lu > N + (get_local_id(0)%%%lu)*%lu) break;\n",
subdims[1].y, subdims[1].y/subdims[1].bwidth, subdims[1].bwidth);
}
kgenAddStmt(ctx, tmp);
kgenEndBranch(ctx, NULL); /* k loop */
kgenBeginBranch(ctx, "if (k < N)");
if (isHoriz) {
kgenAddStmt(ctx, "k = n;\n");
}
else {
sprintf(tmp, "n += (get_local_id(0)%%%lu)*%lu;\n",
subdims[1].y/subdims[1].bwidth, subdims[1].bwidth);
kgenAddStmt(ctx, tmp);
}
genFetchX(ctx, &lset.tileBX, lset.kextra->vecLen, dtype, vnames,
tmulOpts.flags, kflags);
priv.mulOpts = &tmulOpts;
priv.pfPriv = &pfPriv;
priv.diag = true;
pfPriv.funcID = CLBLAS_SYMV;
pfPriv.gset = &lset;
tmulOpts.postFetch = genPostFetchDiag;
tmulOpts.postFetchPriv = &priv;
if (!isHoriz) {
if (upper ^ rowMaj && tra) {
tmulOpts.flags &= ~TILEMUL_TRA;
}
else {
tmulOpts.flags |= TILEMUL_TRA;
}
kgenAddStmt(ctx, "Ktail = N - n;\n");
priv.coord = true;
}
else {
priv.coord = false;
}
tmulOpts.flags |= TILEMUL_SKEW_B | TILEMUL_GLOBAL_CYCLIC_A | TILEMUL_GLOBAL_CYCLIC_K;
ret = tileMulGen(ctx, &lset, &tmulOpts);
if (ret != 0) {
return ret;
}
kgenEndBranch(ctx, NULL);
kgenEndBranch(ctx, NULL);
}
if (!isMatrixAccessColMaj(CLBLAS_GEMV, kflags, MATRIX_A)) {
mulOpts.flags &= ~TILEMUL_BW_STRIDE;
}
kgenEndBranch(ctx,NULL);
genStoreLocalResult(ctx, &gset.tileCY, lid);
kgenAddBarrier(ctx, CLK_LOCAL_MEM_FENCE);
kgenAddBlankLine(ctx);
sprintf(tmp, "if ((%s %% %u) == 0 && coordA < actualN && k0 < N)", lid, bStep);
kgenBeginBranch(ctx, tmp);
genAddLocalResult(ctx, &gset.tileCY, lid, bStep, 1);
/* write back the results */
/* y := alpha*A*x + beta*y */
sprintf(tmp,"(%s - startN)", vnames->coordA);
setResultPos(ctx, kflags, tmp);
updateResultVectorTiled(ctx, kflags, vecLen, &gset.tileCY);
kgenEndBranch(ctx, NULL);
kgenEndFuncBody(ctx);
ret = kgenAddBlankLine(ctx);
if (!ret) {
ret = (ssize_t)kgenSourceSize(ctx) + 1;
}
destroyKgenContext(ctx);
return (ret < 0) ? -EOVERFLOW : ret;
}
// global memory based kernel generator
static ssize_t
generator(
char *buf,
size_t buflen,
const struct SubproblemDim *subdims,
const struct PGranularity *pgran,
void *extra)
{
struct KgenContext *ctx;
CLBLASKernExtra *kextra = (CLBLASKernExtra*)extra;
KernelExtraFlags kflags = kextra->flags;
size_t staggered = ((extraData_t*)&kextra->solverPriv)->staggered;
//yes, KEXTRA_TAILS_K because it is set if N % bw != 0
bool tailN = ((kflags & KEXTRA_TAILS_K) != 0);
bool tailM = ((kflags & KEXTRA_TAILS_M) != 0);
char tmp[4096];
DataType dtype = kextra->dtype;
bool doubleBased = isDoubleBasedType(dtype);
BlasGenSettings gset;
TileMulOpts mulOpts;
KernelVarNames *vnames = &gset.varNames;
ssize_t ret;
TilePostFetchPrivate pfPriv;
unsigned int vecLen = kextra->vecLen;
const char *outTypeName;
const char *gid = "get_group_id(0)";
const char *lid = "get_local_id(0)";
const char *typeName;
size_t wgSize;
//unsigned int nStep = 32;
unsigned int bStep = subdims[0].bwidth / subdims[1].bwidth; //8;
unsigned int cLocal;
bool isComplex = isComplexType(dtype);
unsigned int nPlans;
typeName = dtypeBuiltinType(dtype);
memset(&gset, 0, sizeof(gset));
memset(&mulOpts, 0, sizeof(mulOpts));
ctx = createKgenContext(buf, buflen, true);
if (ctx == NULL) {
return -ENOMEM;
}
// at first, generate needed declarations
kgenDeclareUptrs(ctx, doubleBased);
// now, generate the kernel
declareGemvKernel(ctx, dtype, pgran, kflags);
ret = kgenBeginFuncBody(ctx);
kgenAddStmt(ctx, "// M always denotes length of Y "
"and N denotes length of X in the kernel\n");
/* 1D work space. Matrix is divided among wi, each calculates it's own
* part of vector y */
wgSize = (subdims[0].y / subdims[1].y) *
(subdims[0].bwidth / subdims[1].bwidth);
assert(pgran->wgSize[0] == wgSize);
assert(subdims[0].x == 1);
assert(subdims[1].x == 1);
cLocal = wgSize/bStep;
memcpy(gset.subdims, subdims, sizeof(gset.subdims));
gset.subdims[0].itemX = gset.subdims[0].x = 1;
gset.subdims[1].itemX = gset.subdims[1].x = 1;
gset.subdims[0].bwidth = gset.subdims[1].bwidth;
gset.pgran = pgran;
gset.kextra = kextra;
gset.flags = BGF_UPTRS;
initDefaultTiles(&gset, CLBLAS_GEMV, 0, PRIV_STORAGE_VARIABLE_SET);
if (isComplex) {
gset.tileCY.vecLen = 1;
}
declareTileStorages(ctx, &gset);
genZeroTile(ctx, &gset.tileCY);
getVectorTypeName(dtype, gset.tileCY.vecLen, &outTypeName, NULL);
nPlans = gset.tileCY.nrRows / gset.tileCY.vecLen;
sprintf(tmp, "__local %s localRes[%u][%u];\n",
outTypeName, pgran->wgSize[0], nPlans);
kgenAddStmt(ctx, tmp);
sprintf(tmp, "uint coordA = (%s * %u + %s %% %u) * %lu;\n",
gid, bStep, lid, bStep, subdims[1].y);
kgenAddStmt(ctx, tmp);
sprintf(tmp, "uint k0 = (%s / %u) * %lu;\n",
lid, bStep, subdims[1].bwidth);
kgenAddStmt(ctx, tmp);
kgenAddBlankLine(ctx);
kgenBeginBranch(ctx,"if (coordA < M && k0 < N)");
genIncPointers(ctx, kflags);
sprintf(tmp,
"const GPtr Ag = {(__global %s*)A};\n"
"const GPtr Xg = {(__global %s*)X};\n",
typeName, typeName);
kgenAddStmt(ctx, tmp);
kgenAddBlankLine(ctx);
if (tailN) {
sprintf(tmp, "uint Ntail = N %% %lu;\n", subdims[1].bwidth);
kgenAddStmt(ctx, tmp);
kgenAddStmt(ctx, "N -= Ntail;\n");
kgenAddBlankLine(ctx);
}
mulOpts.flags |= TILEMUL_OPTIMIZE_COORD_CALC;
if (tailM) {
mulOpts.flags |= TILEMUL_GLOBAL_CYCLIC_A;
}
vnames->A = "Ag";
vnames->B = "Xg";
vnames->coordA = "coordA";
vnames->coordB = ""; //should not be used for vector
vnames->k = "k";
vnames->lda = "lda";
vnames->sizeK = "N";
vnames->sizeM = "M";
mulOpts.flags |= TILEMUL_NOT_FETCH_B | TILEMUL_TRB | TILEMUL_C_COLUMN_MAJOR | TILEMUL_NOT_INC_K;
if ((kflags & KEXTRA_CONJUGATE_A) != 0) {
mulOpts.flags |= TILEMUL_CONJA;
}
if (isMatrixAccessColMaj(CLBLAS_GEMV, kflags, MATRIX_A)) {
mulOpts.flags |= TILEMUL_TRA;
}
if ((kflags & KEXTRA_ENABLE_MAD) != 0) {
mulOpts.core = TILEMUL_MAD;
}
else {
mulOpts.core = TILEMUL_MULADD;
}
mulOpts.memA = CLMEM_GLOBAL_MEMORY;
mulOpts.memB = CLMEM_GLOBAL_MEMORY;
if (!isMatrixAccessColMaj(CLBLAS_GEMV, kflags, MATRIX_A)) {
gset.subdims[0].bwidth = pgran->wgSize[0] * subdims[1].bwidth;
mulOpts.flags |= TILEMUL_BW_STRIDE;
}
sprintf(tmp, "uint k = k0;\nfor (; k < N; k += %lu)", cLocal*subdims[1].bwidth);
kgenBeginBranch(ctx, tmp);
if (staggered) {
vnames->k = "k1";
sprintf(tmp, "const uint k1 = (k + get_group_id(0)*%lu)%%N;\n",staggered);
kgenAddStmt(ctx, tmp);
}
genFetchX(ctx, &gset.tileBX, gset.kextra->vecLen, dtype, vnames,
mulOpts.flags, kflags);
ret = tileMulGen(ctx, &gset, &mulOpts);
if (ret != 0) {
return ret;
}
vnames->k = "k";
kgenEndBranch(ctx, NULL); /* k loop */
if (tailN) {
/* Handle tail along vector X */
kgenAddStmt(ctx, "N += Ntail;\n");
kgenBeginBranch(ctx, "if (k < N)");
mulOpts.flags |= TILEMUL_SKEW_B;
genFetchX(ctx, &gset.tileBX, gset.kextra->vecLen, dtype, vnames,
mulOpts.flags, kflags);
mulOpts.flags |= TILEMUL_GLOBAL_CYCLIC_K|TILEMUL_WRAP_AROUND_TAIL;
setFetchHandler(&mulOpts, &gset, defaultTilePostFetch, &pfPriv);
ret = tileMulGen(ctx, &gset, &mulOpts);
if (ret != 0) {
return ret;
}
kgenEndBranch(ctx, NULL);
}
if (!isMatrixAccessColMaj(CLBLAS_GEMV, kflags, MATRIX_A)) {
gset.subdims[0].bwidth = subdims[1].bwidth;
mulOpts.flags &= ~TILEMUL_BW_STRIDE;
}
kgenEndBranch(ctx,NULL);
genStoreLocalResult(ctx, &gset.tileCY, lid);
kgenAddBarrier(ctx, CLK_LOCAL_MEM_FENCE);
kgenAddBlankLine(ctx);
sprintf(tmp, "if (%s < %u && coordA < M && k0 < N)", lid, bStep);
kgenBeginBranch(ctx, tmp);
genAddLocalResult(ctx, &gset.tileCY, lid, cLocal, bStep);
/* write back the results */
/* y := alpha*A*x + beta*y */
setResultPos(ctx, kflags, vnames->coordA);
updateResultVectorTiled(ctx, kflags, vecLen, &gset.tileCY);
kgenEndBranch(ctx, NULL);
kgenEndFuncBody(ctx);
ret = kgenAddBlankLine(ctx);
if (!ret) {
ret = (ssize_t)kgenSourceSize(ctx) + 1;
}
destroyKgenContext(ctx);
return (ret < 0) ? -EOVERFLOW : ret;
}
void
genTest(
struct KgenContext *ctx,
BlasGenSettings *gset,
TileMulOpts *mulOpts,
bool separateFetch)
{
char s[1024];
Kstring kstr;
char *tName, tVect[64], *ptrName;
KernelVarNames *vnames = &gset->varNames;
DataType dtype = gset->kextra->dtype;
const SubproblemDim *subdims = gset->subdims;
unsigned int vecLen = gset->kextra->vecLen;
size_t m, n, k;
unsigned int i, j;
bool tra, trb, localA, localB, vecCoords;
int ret;
TileMulFlags flags = mulOpts->flags;
FetchOpts fetchOpts;
m = gset->subdims[1].y;
n = gset->subdims[1].x;
k = gset->subdims[1].bwidth;
tra = ((flags & TILEMUL_TRA) != 0);
trb = ((flags & TILEMUL_TRB) != 0);
localA = (mulOpts->memA == CLMEM_LOCAL_MEMORY);
localB = (mulOpts->memB == CLMEM_LOCAL_MEMORY);
vecCoords = ((flags & TILEMUL_OPTIMIZE_VEC_COORDS) != 0);
tVect[0] = '\0';
if (vecCoords && vecLen != 1) {
sprintf(tVect, "%u", vecLen);
}
switch (dtype) {
case TYPE_FLOAT:
tName = "float";
ptrName = "f";
break;
case TYPE_DOUBLE:
tName = "double";
ptrName = "d";
break;
case TYPE_COMPLEX_FLOAT:
tName = "float2";
ptrName = "f2v";
break;
case TYPE_COMPLEX_DOUBLE:
tName = "double2";
ptrName = "d2v";
break;
default:
return;
}
if (vecCoords) {
//Do not use GPtrs in fetching
vnames->A = "A";
vnames->B = "B";
}
else {
vnames->A = localA ? "LAptr" : "((GPtr)A)";
vnames->B = localB ? "LBptr" : "((GPtr)B)";
}
if (!localA) {
vnames->lda = "lda";
}
if (!localB) {
vnames->ldb = "ldb";
}
vnames->sizeM = "M";
vnames->sizeN = "N";
vnames->sizeK = "K";
vnames->skewA = "skewA";
vnames->skewB = "skewB";
vnames->skewK = "skewK";
vnames->coordA = "workItemM";
vnames->coordB = "workItemN";
vnames->k = "k";
kgenAddBlankLine(ctx);
sprintf(s, "__attribute__((reqd_work_group_size(%i, %i, 1)))\n",
ITEM_WORK_M, ITEM_WORK_N);
kgenAddStmt(ctx, s);
kgenAddStmt(ctx, "__kernel void\n");
sprintf(s, "%s(\n", kernelName);
kgenAddStmt(ctx, s);
sprintf(s," %s alpha,\n", tName);
kgenAddStmt(ctx, s);
sprintf(s," __global %s%s *A,\n", tName, tVect);
kgenAddStmt(ctx, s);
sprintf(s," __global %s%s *B,\n", tName, tVect);
kgenAddStmt(ctx, s);
kgenAddStmt(ctx, " uint M,\n"
" uint N,\n"
" uint K,\n");
sprintf(s,
" __global %s *C,\n"
" const uint iter)\n", tName);
kgenAddStmt(ctx, s);
kgenBeginFuncBody(ctx);
sprintf(s, "uint workItemM = %lu * get_global_id(0);\n"
"uint workItemN = %lu * get_global_id(1);\n",
m, n);
kgenAddStmt(ctx, s);
if ((flags & TILEMUL_SKEW_A) != 0) {
kgenAddStmt(ctx, "uint skewA = 0u;\n");
}
if ((flags & TILEMUL_SKEW_B) != 0) {
kgenAddStmt(ctx, "uint skewB = 0u;\n");
}
if ((flags & TILEMUL_SKEW_K) != 0) {
kgenAddStmt(ctx, "uint skewK = 0u;\n");
}
if (localA) {
sprintf(s, "__local %s LA[%lu];\n",
tName, subdims[0].bwidth * subdims[0].y);
kgenAddStmt(ctx, s);
}
else { //global A
sprintf(s, "uint lda = %s;\n", tra ? "M" : "K");
kgenAddStmt(ctx, s);
}
if (localB) {
sprintf(s, "__local %s LB[%lu];\n",
tName, subdims[0].bwidth * subdims[0].x);
kgenAddStmt(ctx, s);
}
else { //global B
sprintf(s, "uint ldb = %s;\n", trb ? "K" : "N");
kgenAddStmt(ctx, s);
}
initDefaultTiles(gset, CLBLAS_GEMM, TILE_PACKED, PRIV_STORAGE_ARRAY);
declareTileStorages(ctx, gset);
if (vecCoords) {
size_t ha, hb;
char *str;
ha = tra ? k : m;
hb = trb ? n : k;
if (ha > 1) {
str = s;
str += sprintf(str, "uint%lu ca = {0", ha);
for (i = 1; i < ha; i++) {
str += sprintf(str, ", %s * %u / %u", vnames->lda, i, vecLen);
}
str += sprintf(str, "};\n");
kgenAddStmt(ctx, s);
}
else {
kgenAddStmt(ctx, "uint ca = 0;\n");
}
vnames->vectCoordA = "ca";
if (hb > 1) {
str = s;
str += sprintf(str, "uint%lu cb = {0", hb);
for (i = 1; i < hb; i++) {
str += sprintf(str, ", %s * %u / %u", vnames->ldb, i, vecLen);
}
str += sprintf(str, "};\n");
kgenAddStmt(ctx, s);
}
else {
kgenAddStmt(ctx, "uint cb = 0;\n");
}
vnames->vectCoordB = "cb";
// uint4 ca = {0, vecLDA, vecLDA * 2, vecLDA * 3};
// uint4 cb = {0, vecLDB, vecLDB * 2, vecLDB * 3};
}
kgenAddBlankLine(ctx);
sprintf(s, "for (int it = 0; it < iter; it++)");
kgenBeginBranch(ctx, s);
if (!(localA && localB)) {
kgenAddStmt(ctx, "uint k = 0;\n");
}
genZeroTile(ctx, &gset->tileCY);
if (vecCoords) {
char *coordsA[2] = {"workItemM", "k"};
char *coordsB[2] = {"k", "workItemN"};
sprintf(s, "A += %s * (lda / %u) + %s / %u;\n",
coordsA[tra], vecLen, coordsA[1 - tra], vecLen);
kgenAddStmt(ctx, s);
sprintf(s, "B += %s * (ldb / %u) + %s / %u;\n",
coordsB[trb], vecLen, coordsB[1 - trb], vecLen);
kgenAddStmt(ctx, s);
}
sprintf(s, "for (int k0 = 0; k0 < K; k0 += %lu)", subdims[0].bwidth);
kgenBeginBranch(ctx, s);
/* Copy data to local memory. We know that the size of matrix is the same
* that the size of one block and use that.
*/
if (localA) {
sprintf(s,
"event_t evA = async_work_group_copy(LA, A, %lu, 0);\n"
"wait_group_events(1, &evA);\n"
"barrier(CLK_LOCAL_MEM_FENCE);\n",
subdims[0].y * subdims[0].bwidth);
kgenAddStmt(ctx, s);
kgenAddStmt(ctx, "LPtr LAptr;\n");
if (tra) {
sprintf(s,
"LAptr.%s = LA + workItemM;\n", ptrName);
}
else {
sprintf(s,
"LAptr.%s = LA + workItemM * %lu;\n",
ptrName, subdims[0].bwidth);
}
kgenAddStmt(ctx, s);
}
if (localB) {
sprintf(s,
"event_t evB = async_work_group_copy(LB, B, %lu, 0);\n"
"wait_group_events(1, &evB);\n"
"barrier(CLK_LOCAL_MEM_FENCE);\n",
subdims[0].x * subdims[0].bwidth);
kgenAddStmt(ctx, s);
kgenAddStmt(ctx, "LPtr LBptr;\n");
if (trb) {
sprintf(s, "LBptr.%s = LB + workItemN * %lu;\n",
ptrName, subdims[0].bwidth);
}
else {
sprintf(s, "LBptr.%s = LB + workItemN;\n", ptrName);
}
kgenAddStmt(ctx, s);
}
if (!separateFetch) {
ret = tileMulGen(ctx, gset, mulOpts);
checkRet(ret, "Multiplier");
}
else {
Tile *tileA = &gset->tileA;
Tile *tileB = &gset->tileBX;
memset(&fetchOpts, 0, sizeof(fetchOpts));
if (localA) {
fetchOpts.memA = CLMEM_LOCAL_MEMORY;
}
if (localB) {
fetchOpts.memB = CLMEM_LOCAL_MEMORY;
}
genFillTileWithNAN(ctx, tileA);
genFillTileWithNAN(ctx, tileB);
if (subdims[0].bwidth != subdims[1].bwidth) {
sprintf(s, "for (int k1 = 0; k1 < %lu; k1 += %lu)",
subdims[0].bwidth, k);
kgenBeginBranch(ctx, s);
}
#if JUST_MULTIPLICATION
for (i = 0; i < tileA->nrRows; i++) {
for(j = 0; j < tileA->nrCols; j++) {
sprintfTileElement(&kstr, tileA, i, j, 1);
sprintf(s, "%s = %u;\n", kstr.buf, i * tileA->nrCols + j);
kgenAddStmt(ctx, s);
}
}
for (i = 0; i < tileB->nrRows; i++) {
for(j = 0; j < tileB->nrCols; j++) {
sprintfTileElement(&kstr, tileB, i, j, 1);
sprintf(s, "%s = %u;\n", kstr.buf, i * tileB->nrCols + j);
kgenAddStmt(ctx, s);
}
}
#else
fetchOpts.mrole = MATRIX_B;
fetchOpts.lineOffset = 0;
fetchOpts.linesNum = (tileB->trans) ? tileB->nrCols : tileB->nrRows;
ret = genFetchInputTile(ctx, NULL, gset, &fetchOpts);
checkRet(ret, "Fetching tile b");
fetchOpts.mrole = MATRIX_A;
fetchOpts.linesNum = (tileA->trans) ? tileA->nrCols : tileA->nrRows;
kgenAddBlankLine(ctx);
fetchOpts.lineOffset = 0;
ret = genFetchInputTile(ctx, NULL, gset, &fetchOpts);
checkRet(ret, "Fetching tile a");
#endif
ret = genMulTiles(ctx, gset, mulOpts);
checkRet(ret, "Multiplier");
#if ! JUST_MULTIPLICATION
sprintf(s, "k += %lu;\n", k);
kgenAddStmt(ctx, s);
#endif
if (subdims[0].bwidth != subdims[1].bwidth) {
kgenEndBranch(ctx, NULL);
}
}
kgenEndBranch(ctx, NULL); // K loop
kgenEndBranch(ctx, NULL); // iterations loop
kgenAddBlankLine(ctx);
for (i = 0; i < m; i++) {
for (j = 0; j < n; j++) {
sprintfTileElement(&kstr, &gset->tileCY, i, j, 1);
sprintf(s,
"((GPtr)C).%s"
"[(%d + workItemM) * N + %d + workItemN] = %s;\n",
ptrName, i, j, kstr.buf);
kgenAddStmt(ctx, s);
}
}
kgenEndFuncBody(ctx);
}
static ssize_t
generator(
char *buf,
size_t buflen,
const struct SubproblemDim *subdims,
const struct PGranularity *pgran,
void *extra)
{
char tmp[4096];
struct KgenContext *ctx;
CLBLASKernExtra *kextra = (CLBLASKernExtra*)extra;
KernelExtraFlags kflags = kextra->flags;
DataType dtype = kextra->dtype;
bool doubleBased = isDoubleBasedType(dtype);
size_t staggered = ((extraData_t*)&kextra->solverPriv)->staggered;
int ret;
BlasGenSettings gset;
TileMulOpts mulOpts;
int tra = isMatrixAccessColMaj(CLBLAS_TRMM, kflags, MATRIX_A);
int trb = isMatrixAccessColMaj(CLBLAS_TRMM, kflags, MATRIX_B);
unsigned int l1Pans;
TilePostFetchPrivate pfPriv[2];
UpdateResultFlags upResFlags;
TailStatus tailStatus;
bool subgMode = false;
SubgVarNames subgVNames;
ctx = createKgenContext(buf, buflen, true);
if (ctx == NULL) {
return -ENOMEM;
}
// mismatching subdims define case with subgroup decomposition
subgMode = ( subdims[0].bwidth != subdims[1].bwidth );
memset(&gset, 0, sizeof(gset));
memcpy(gset.subdims, subdims, sizeof(gset.subdims));
gset.flags = BGF_DISTINCT_VECLEN;
gset.flags |= BGF_WHOLE_A;
/*FIXME: This used to be a workaround for compilation issues with dtrmm on
* cpu. Normally BGF_WHOLE_A should be enabled always. But for now,
* there are wrong results for non-aligned cases on CPU and there is
* no workaround yet.
if (kflags & (KEXTRA_TAILS_M | KEXTRA_TAILS_N | KEXTRA_TAILS_K)) {
gset.flags &= ~BGF_WHOLE_A;
}*/
gset.kextra = kextra;
gset.pgran = pgran;
//avoid [0].bw loop
//gset.subdims[0].bwidth = gset.subdims[1].bwidth;
memset(pfPriv, 0, sizeof(pfPriv));
pfPriv[0].funcID = CLBLAS_TRMM;
pfPriv[0].gset = &gset;
if ((gset.flags & BGF_WHOLE_A) != 0) {
pfPriv[0].wholeA = 1;
}
// at first, generate needed declarations
kgenDeclareUptrs(ctx, doubleBased);
// For inner callback, because both callbacks use own fetchNumA
memcpy(&pfPriv[1], &pfPriv[0], sizeof(pfPriv[0]));
// if both matrices are accessed row-major - using subgroup pattern
if ( subgMode ) {
declareTrxmKernel(ctx,
dtype,
pgran,
kflags,
CLBLAS_TRMM,
"Subgroup",
true,
true);
gset.flags |= BGF_UPTRS;
}
else {
declareTrxmKernel(ctx,
dtype,
pgran,
kflags,
CLBLAS_TRMM,
"Block",
true,
true);
}
kgenBeginFuncBody(ctx);
initDefaultTiles(&gset, CLBLAS_TRMM, 0, PRIV_STORAGE_VARIABLE_SET);
declareTileStorages(ctx, &gset);
kgenAddStmt(ctx,
"uint currM, currN;\n"
"uint4 coord = 0; /* contains coordB, coordA, k */\n");
kgenDeclareLocalID(ctx, "lid", pgran);
kgenDeclareGroupID(ctx, "gid", pgran);
if ( subgMode ) {
gset.varNames.LDS = "scratch";
// declaring variables used by subgroup mode
subgVNames.itemId = "itemId";
subgVNames.subgCoord = "subgCoord";
kgenAddBlankLine( ctx );
kgenAddBlankLine(ctx);
kgenPrintf(ctx, "int2 %s;\n", subgVNames.itemId );
kgenPrintf(ctx, "int2 %s;\n", subgVNames.subgCoord);
// item ID
kgenPrintf( ctx,
"%s.x = get_local_id(0)%%%d;\n",
subgVNames.itemId,
subdims[0].bwidth/subdims[1].bwidth);
// subgroup ID
kgenPrintf( ctx,
"%s.y = get_local_id(0)/%d;\n",
subgVNames.itemId,
subdims[0].bwidth/subdims[1].bwidth);
// subgroup coordX
kgenPrintf( ctx,
"%s.x = %s.y/%d;\n",
subgVNames.subgCoord,
subgVNames.itemId,
subdims[0].y/subdims[1].y );
// subgroup coordY
kgenPrintf( ctx,
"%s.y = %s.y%%%d;\n",
subgVNames.subgCoord,
subgVNames.itemId,
subdims[0].y/subdims[1].y );
}
kgenAddBlankLine(ctx);
sprintf(tmp, "currN = gid * %lu;\n", subdims->x);
kgenAddStmt(ctx, tmp);
genInitCurrM(ctx, subdims, kflags);
if (kflags & KEXTRA_A_OFF_NOT_ZERO) {
kgenAddStmt(ctx, "A += offA;\n");
}
genTrxmBMatrShift(ctx, kflags, true);
if ( subgMode ) {
kgenAddStmt(ctx,
"GPtr Ag = {A};\n"
"GPtr Bg = {B};\n");
}
l1Pans = (unsigned int)subdims[0].x / (unsigned int)subdims[1].x;
memset(&mulOpts, 0, sizeof(mulOpts));
mulOpts.core = ((kflags & KEXTRA_ENABLE_MAD) != 0)
? TILEMUL_MAD
: TILEMUL_MULADD;
mulOpts.memA = CLMEM_GLOBAL_MEMORY;
mulOpts.memB = CLMEM_GLOBAL_MEMORY;
mulOpts.postFetch = NULL;
mulOpts.postFetchPriv = &pfPriv;
mulOpts.flags = TILEMUL_NO_FLAGS;
mulOpts.flags |= TILEMUL_EXTERN_RDECL;
if ( subgMode ) {
mulOpts.flags |= TILEMUL_NOT_INC_K;
mulOpts.flags |= TILEMUL_BW_STRIDE;
}
if (kflags & KEXTRA_TAILS_M_LOWER) {
mulOpts.flags |= TILEMUL_GLOBAL_CYCLIC_A;
}
if (kflags & KEXTRA_TAILS_N_LOWER) {
mulOpts.flags |= TILEMUL_GLOBAL_CYCLIC_B;
}
if (kflags & KEXTRA_TAILS_K_LOWER) {
mulOpts.flags |= TILEMUL_GLOBAL_CYCLIC_K;
mulOpts.flags |= TILEMUL_WRAP_AROUND_TAIL;
}
if (tra) {
mulOpts.flags |= TILEMUL_TRA;
}
if (!trb) {
mulOpts.flags |= TILEMUL_TRB;
}
if (isMatrixConj(kflags, MATRIX_A)) {
mulOpts.flags |= TILEMUL_CONJA;
}
if (isMatrixConj(kflags, MATRIX_B)) {
mulOpts.flags |= TILEMUL_CONJB;
}
initKernelVarNames(&gset.varNames);
if ( subgMode ) {
kgenPrintf( ctx,
"coord.x = currN + %s.x*%d;\n",
subgVNames.subgCoord,
subdims[1].x );
}
else {
sprintf(tmp, "coord.x = currN + lid %% %u * %lu;\n", l1Pans, subdims[1].x);
kgenAddStmt(ctx, tmp);
}
// loop over M
sprintf(tmp, "for (uint m0 = 0; m0 < M; m0 += %lu)", subdims[0].y);
kgenBeginBranch(ctx, tmp);
genStartPosK( ctx, subdims, kflags, subgMode );
sprintf(tmp, "coord.z = kBegin;\n");
kgenAddStmt(ctx, tmp);
if ( subgMode ) {
kgenPrintf(ctx,
"coord.y = currM + %s.y*%d;\n",
subgVNames.subgCoord,
subdims[1].y);
}
else {
sprintf( tmp,
"coord.y = currM + lid / %u * %lu;\n",
l1Pans,
subdims[1].y );
kgenAddStmt(ctx, tmp);
}
genZeroTile(ctx, &gset.tileCY);
checkGenBeginHitMatrixBlock(ctx, kflags);
tailStatus = checkGenAdjustTailCoords(ctx, CLBLAS_TRMM, &gset, NULL);
// loops along 'K'
if ( subgMode ) {
ret = genSubgLoopsK( ctx, &gset, &mulOpts, &subgVNames, staggered);
}
else {
ret = genLoopsK( ctx, &gset, &mulOpts, tmp );
}
if (ret != 0) {
printf("%s", buf);
return ret;
}
checkGenEndHitMatrixBlock(ctx, kflags);
kgenAddBarrier(ctx, CLK_GLOBAL_MEM_FENCE);
// store results
// for result update - x coordinate is in elements, not in vectors
checkGenRestoreTailCoords(ctx, &gset, tailStatus);
upResFlags = kextraToUpresFlags(CLBLAS_TRMM, kflags);
upResFlags |= tailStatusToUpresFlags(tailStatus);
upResFlags |= UPRES_INDEXING_WITH_CONSTANTS;
upResFlags |= UPRES_TRIANG_WRITE_C;
upResFlags |= UPRES_EXCEED_PROBLEM_CONDITION;
if ( subgMode ) {
mergeUpdateResult( ctx,
CLBLAS_TRMM,
&gset,
&subgVNames,
upResFlags,
genResultUpdateWithFlags );
}
else {
//checkGenBeginHitMatrixBlock(ctx, kflags);
genResultUpdateWithFlags( ctx,
CLBLAS_TRMM,
&gset,
upResFlags,
NULL,
NULL,
NULL );
//checkGenEndHitMatrixBlock(ctx, kflags);
}
if (isMatrixUpper(kflags)) {
sprintf(tmp, "currM += %lu;\n", subdims[0].y);
}
else {
sprintf(tmp, "currM -= %lu;\n", subdims[0].y);
}
kgenAddStmt(ctx, tmp);
kgenEndBranch(ctx, NULL);
kgenEndFuncBody(ctx);
ret = kgenAddBlankLine(ctx);
if (!ret) {
ret = (ssize_t)kgenSourceSize(ctx) + 1;
}
destroyKgenContext(ctx);
return (ret < 0) ? -EOVERFLOW : ret;
}