/* The MSV score can be validated against Viterbi (provided we trust
* Viterbi), by creating a multihit local profile in which:
* 1. All t_MM scores = 0
* 2. All other core transitions = -inf
* 3. All t_BMk entries uniformly log 2/(M(M+1))
*/
static void
utest_msv(ESL_GETOPTS *go, ESL_RANDOMNESS *r, ESL_ALPHABET *abc, P7_BG *bg, P7_PROFILE *gm, int nseq, int L)
{
P7_PROFILE *g2 = NULL;
ESL_DSQ *dsq = NULL;
P7_GMX *gx = NULL;
float sc1, sc2;
int k, idx;
if ((dsq = malloc(sizeof(ESL_DSQ) *(L+2))) == NULL) esl_fatal("malloc failed");
if ((gx = p7_gmx_Create(gm->M, L)) == NULL) esl_fatal("matrix creation failed");
if ((g2 = p7_profile_Clone(gm)) == NULL) esl_fatal("profile clone failed");
/* Make g2's scores appropriate for simulating the MSV algorithm in Viterbi */
esl_vec_FSet(g2->tsc, p7P_NTRANS * g2->M, -eslINFINITY);
for (k = 1; k < g2->M; k++) p7P_TSC(g2, k, p7P_MM) = 0.0f;
for (k = 0; k < g2->M; k++) p7P_TSC(g2, k, p7P_BM) = log(2.0f / ((float) g2->M * (float) (g2->M+1)));
for (idx = 0; idx < nseq; idx++)
{
if (esl_rsq_xfIID(r, bg->f, abc->K, L, dsq) != eslOK) esl_fatal("seq generation failed");
if (p7_GMSV (dsq, L, gm, gx, 2.0, &sc1) != eslOK) esl_fatal("MSV failed");
if (p7_GViterbi(dsq, L, g2, gx, &sc2) != eslOK) esl_fatal("viterbi failed");
if (fabs(sc1-sc2) > 0.0001) esl_fatal("MSV score not equal to Viterbi score");
}
p7_gmx_Destroy(gx);
p7_profile_Destroy(g2);
free(dsq);
return;
}
/* ViterbiScore() unit test
*
* We can compare these scores to GViterbi() almost exactly; the only
* differences should be negligible roundoff errors. Must convert
* the optimized profile to lspace, though, rather than pspace.
*/
static void
utest_viterbi_score(ESL_RANDOMNESS *r, ESL_ALPHABET *abc, P7_BG *bg, int M, int L, int N)
{
P7_HMM *hmm = NULL;
P7_PROFILE *gm = NULL;
P7_OPROFILE *om = NULL;
ESL_DSQ *dsq = malloc(sizeof(ESL_DSQ) * (L+2));
P7_OMX *ox = p7_omx_Create(M, 0, 0);
P7_GMX *gx = p7_gmx_Create(M, L);
float sc1, sc2;
p7_oprofile_Sample(r, abc, bg, M, L, &hmm, &gm, &om);
p7_oprofile_Logify(om);
while (N--)
{
esl_rsq_xfIID(r, bg->f, abc->K, L, dsq);
p7_ViterbiScore(dsq, L, om, ox, &sc1);
p7_GViterbi (dsq, L, gm, gx, &sc2);
if (fabs(sc1-sc2) > 0.001) esl_fatal("viterbi score unit test failed: scores differ");
}
free(dsq);
p7_hmm_Destroy(hmm);
p7_omx_Destroy(ox);
p7_gmx_Destroy(gx);
p7_profile_Destroy(gm);
p7_oprofile_Destroy(om);
}
/* tests:
* 1. each sampled trace must validate.
* 2. each trace must be <= viterbi trace score
* 3. in a large # of traces, one is "equal" to the viterbi trace score.
* (this of course is stochastic; but it's true for the particular
* choice of RNG seed used in tests here.)
*/
static void
utest_stotrace(ESL_GETOPTS *go, ESL_RANDOMNESS *rng, ESL_ALPHABET *abc, P7_PROFILE *gm, P7_OPROFILE *om, ESL_DSQ *dsq, int L, int ntrace)
{
P7_GMX *gx = NULL;
P7_OMX *ox = NULL;
P7_TRACE *tr = NULL;
char errbuf[eslERRBUFSIZE];
int idx;
float maxsc = -eslINFINITY;
float vsc, sc;
if ((gx = p7_gmx_Create(gm->M, L)) == NULL) esl_fatal("generic DP matrix creation failed");
if ((ox = p7_omx_Create(gm->M, L, L)) == NULL) esl_fatal("optimized DP matrix create failed");
if ((tr = p7_trace_Create()) == NULL) esl_fatal("trace creation failed");
if (p7_GViterbi(dsq, L, gm, gx, &vsc) != eslOK) esl_fatal("viterbi failed");
if (p7_Forward (dsq, L, om, ox, NULL) != eslOK) esl_fatal("forward failed");
for (idx = 0; idx < ntrace; idx++)
{
if (p7_StochasticTrace(rng, dsq, L, om, ox, tr) != eslOK) esl_fatal("stochastic trace failed");
if (p7_trace_Validate(tr, abc, dsq, errbuf) != eslOK) esl_fatal("trace invalid:\n%s", errbuf);
if (p7_trace_Score(tr, dsq, gm, &sc) != eslOK) esl_fatal("trace scoring failed");
maxsc = ESL_MAX(sc, maxsc);
if (sc > vsc) esl_fatal("sampled trace has score > optimal Viterbi path; not possible");
p7_trace_Reuse(tr);
}
if (esl_FCompare(maxsc, vsc, 0.1) != eslOK) esl_fatal("stochastic trace failed to sample the Viterbi path");
p7_trace_Destroy(tr);
p7_omx_Destroy(ox);
p7_gmx_Destroy(gx);
}
/* The "basic" utest is a minimal driver for making a small DNA profile and a small DNA sequence,
* then running Viterbi and Forward. It's useful for dumping DP matrices and profiles for debugging.
*/
static void
utest_basic(ESL_GETOPTS *go)
{
char *query= "# STOCKHOLM 1.0\n\nseq1 GAATTC\nseq2 GAATTC\n//\n";
int fmt = eslMSAFILE_STOCKHOLM;
char *targ = "GAATTC";
ESL_ALPHABET *abc = NULL;
ESL_MSA *msa = NULL;
P7_HMM *hmm = NULL;
P7_PROFILE *gm = NULL;
P7_BG *bg = NULL;
P7_PRIOR *pri = NULL;
ESL_DSQ *dsq = NULL;
P7_GMX *gx = NULL;
P7_TRACE *tr = NULL;
int L = strlen(targ);
float vsc, vsc2, fsc;
if ((abc = esl_alphabet_Create(eslDNA)) == NULL) esl_fatal("failed to create alphabet");
if ((pri = p7_prior_CreateNucleic()) == NULL) esl_fatal("failed to create prior");
if ((msa = esl_msa_CreateFromString(query, fmt)) == NULL) esl_fatal("failed to create MSA");
if (esl_msa_Digitize(abc, msa, NULL) != eslOK) esl_fatal("failed to digitize MSA");
if (p7_Fastmodelmaker(msa, 0.5, NULL, &hmm, NULL) != eslOK) esl_fatal("failed to create GAATTC model");
if (p7_ParameterEstimation(hmm, pri) != eslOK) esl_fatal("failed to parameterize GAATTC model");
if (p7_hmm_SetConsensus(hmm, NULL) != eslOK) esl_fatal("failed to make consensus");
if ((bg = p7_bg_Create(abc)) == NULL) esl_fatal("failed to create DNA null model");
if ((gm = p7_profile_Create(hmm->M, abc)) == NULL) esl_fatal("failed to create GAATTC profile");
if (p7_ProfileConfig(hmm, bg, gm, L, p7_UNILOCAL)!= eslOK) esl_fatal("failed to config profile");
if (p7_profile_Validate(gm, NULL, 0.0001) != eslOK) esl_fatal("whoops, profile is bad!");
if (esl_abc_CreateDsq(abc, targ, &dsq) != eslOK) esl_fatal("failed to create GAATTC digital sequence");
if ((gx = p7_gmx_Create(gm->M, L)) == NULL) esl_fatal("failed to create DP matrix");
if ((tr = p7_trace_Create()) == NULL) esl_fatal("trace creation failed");
p7_GViterbi (dsq, L, gm, gx, &vsc);
if (esl_opt_GetBoolean(go, "-v")) printf("Viterbi score: %.4f\n", vsc);
if (esl_opt_GetBoolean(go, "-v")) p7_gmx_Dump(stdout, gx, p7_DEFAULT);
p7_GTrace (dsq, L, gm, gx, tr);
p7_trace_Score(tr, dsq, gm, &vsc2);
if (esl_opt_GetBoolean(go, "-v")) p7_trace_Dump(stdout, tr, gm, dsq);
if (esl_FCompare(vsc, vsc2, 1e-5) != eslOK) esl_fatal("trace score and Viterbi score don't agree.");
p7_GForward (dsq, L, gm, gx, &fsc);
if (esl_opt_GetBoolean(go, "-v")) printf("Forward score: %.4f\n", fsc);
if (esl_opt_GetBoolean(go, "-v")) p7_gmx_Dump(stdout, gx, p7_DEFAULT);
p7_trace_Destroy(tr);
p7_gmx_Destroy(gx);
free(dsq);
p7_profile_Destroy(gm);
p7_bg_Destroy(bg);
p7_hmm_Destroy(hmm);
esl_msa_Destroy(msa);
p7_prior_Destroy(pri);
esl_alphabet_Destroy(abc);
return;
}
/* ViterbiFilter() unit test
*
* We can check that scores are identical (within machine error) to
* scores of generic DP with scores rounded the same way. Do this for
* a random model of length <M>, for <N> test sequences of length <L>.
*
* We assume that we don't accidentally generate a high-scoring random
* sequence that overflows ViterbiFilter()'s limited range.
*
*/
static void
utest_viterbi_filter(ESL_RANDOMNESS *r, ESL_ALPHABET *abc, P7_BG *bg, int M, int L, int N)
{
P7_HMM *hmm = NULL;
P7_PROFILE *gm = NULL;
P7_OPROFILE *om = NULL;
ESL_DSQ *dsq = malloc(sizeof(ESL_DSQ) * (L+2));
P7_OMX *ox = p7_omx_Create(M, 0, 0);
P7_GMX *gx = p7_gmx_Create(M, L);
float sc1, sc2;
p7_oprofile_Sample(r, abc, bg, M, L, &hmm, &gm, &om);
p7_profile_SameAsVF(om, gm); /* round and scale the scores in <gm> the same as in <om> */
#if 0
p7_oprofile_Dump(stdout, om); // dumps the optimized profile
p7_omx_SetDumpMode(stdout, ox, TRUE); // makes the fast DP algorithms dump their matrices
#endif
while (N--)
{
esl_rsq_xfIID(r, bg->f, abc->K, L, dsq);
p7_ViterbiFilter(dsq, L, om, ox, &sc1);
p7_GViterbi (dsq, L, gm, gx, &sc2);
#if 0
p7_gmx_Dump(stdout, gx); // dumps a generic DP matrix
#endif
sc2 /= om->scale_w;
sc2 -= 3.0;
if (fabs(sc1-sc2) > 0.001) esl_fatal("viterbi filter unit test failed: scores differ (%.2f, %.2f)", sc1, sc2);
}
free(dsq);
p7_hmm_Destroy(hmm);
p7_omx_Destroy(ox);
p7_gmx_Destroy(gx);
p7_profile_Destroy(gm);
p7_oprofile_Destroy(om);
}
/* Forward is hard to validate.
* We do know that the Forward score is >= Viterbi.
* We also know that the expected score on random seqs is <= 0 (not
* exactly - we'd have to sample the random length from the background
* model too, not just use a fixed L - but it's close enough to
* being true to be a useful test.)
*/
static void
utest_forward(ESL_GETOPTS *go, ESL_RANDOMNESS *r, ESL_ALPHABET *abc, P7_BG *bg, P7_PROFILE *gm, int nseq, int L)
{
float avg_sc;
ESL_DSQ *dsq = NULL;
P7_GMX *fwd = NULL;
P7_GMX *bck = NULL;
int idx;
float fsc, bsc;
float vsc, nullsc;
if ((dsq = malloc(sizeof(ESL_DSQ) *(L+2))) == NULL) esl_fatal("malloc failed");
if ((fwd = p7_gmx_Create(gm->M, L)) == NULL) esl_fatal("matrix creation failed");
if ((bck = p7_gmx_Create(gm->M, L)) == NULL) esl_fatal("matrix creation failed");
avg_sc = 0.;
for (idx = 0; idx < nseq; idx++)
{
if (esl_rsq_xfIID(r, bg->f, abc->K, L, dsq) != eslOK) esl_fatal("seq generation failed");
if (p7_GViterbi(dsq, L, gm, fwd, &vsc) != eslOK) esl_fatal("viterbi failed");
if (p7_GForward(dsq, L, gm, fwd, &fsc) != eslOK) esl_fatal("forward failed");
if (p7_GBackward(dsq, L, gm, bck, &bsc) != eslOK) esl_fatal("backward failed");
if (fsc < vsc) esl_fatal("Foward score can't be less than Viterbi score");
if (fabs(fsc-bsc) > 0.001) esl_fatal("Forward/Backward failed: %f %f\n", fsc, bsc);
if (p7_bg_NullOne(bg, dsq, L, &nullsc) != eslOK) esl_fatal("null score failed");
avg_sc += fsc - nullsc;
if (esl_opt_GetBoolean(go, "--vv"))
printf("utest_forward: Forward score: %.4f (total so far: %.4f)\n", fsc, avg_sc);
}
avg_sc /= (float) nseq;
if (avg_sc > 0.) esl_fatal("Forward scores have positive expectation (%f nats)", avg_sc);
p7_gmx_Destroy(fwd);
p7_gmx_Destroy(bck);
free(dsq);
return;
}
/* Viterbi validation is done by comparing the returned score
* to the score of the optimal trace. Not foolproof, but catches
* many kinds of errors.
*
* Another check is that the average score should be <= 0,
* since the random sequences are drawn from the null model.
*/
static void
utest_viterbi(ESL_GETOPTS *go, ESL_RANDOMNESS *r, ESL_ALPHABET *abc, P7_BG *bg, P7_PROFILE *gm, int nseq, int L)
{
float avg_sc = 0.;
char errbuf[eslERRBUFSIZE];
ESL_DSQ *dsq = NULL;
P7_GMX *gx = NULL;
P7_TRACE *tr = NULL;
int idx;
float sc1, sc2;
if ((dsq = malloc(sizeof(ESL_DSQ) *(L+2))) == NULL) esl_fatal("malloc failed");
if ((tr = p7_trace_Create()) == NULL) esl_fatal("trace creation failed");
if ((gx = p7_gmx_Create(gm->M, L)) == NULL) esl_fatal("matrix creation failed");
for (idx = 0; idx < nseq; idx++)
{
if (esl_rsq_xfIID(r, bg->f, abc->K, L, dsq) != eslOK) esl_fatal("seq generation failed");
if (p7_GViterbi(dsq, L, gm, gx, &sc1) != eslOK) esl_fatal("viterbi failed");
if (p7_GTrace (dsq, L, gm, gx, tr) != eslOK) esl_fatal("trace failed");
if (p7_trace_Validate(tr, abc, dsq, errbuf) != eslOK) esl_fatal("trace invalid:\n%s", errbuf);
if (p7_trace_Score(tr, dsq, gm, &sc2) != eslOK) esl_fatal("trace score failed");
if (esl_FCompare(sc1, sc2, 1e-6) != eslOK) esl_fatal("Trace score != Viterbi score");
if (p7_bg_NullOne(bg, dsq, L, &sc2) != eslOK) esl_fatal("null score failed");
avg_sc += (sc1 - sc2);
if (esl_opt_GetBoolean(go, "--vv"))
printf("utest_viterbi: Viterbi score: %.4f (null %.4f) (total so far: %.4f)\n", sc1, sc2, avg_sc);
p7_trace_Reuse(tr);
}
avg_sc /= (float) nseq;
if (avg_sc > 0.) esl_fatal("Viterbi scores have positive expectation (%f nats)", avg_sc);
p7_gmx_Destroy(gx);
p7_trace_Destroy(tr);
free(dsq);
return;
}
/* The "generation" test scores sequences generated by the same profile.
* Each Viterbi and Forward score should be >= the trace score of the emitted seq.
* The expectation of Forward scores should be positive.
*/
static void
utest_generation(ESL_GETOPTS *go, ESL_RANDOMNESS *r, ESL_ALPHABET *abc,
P7_PROFILE *gm, P7_HMM *hmm, P7_BG *bg, int nseq)
{
ESL_SQ *sq = esl_sq_CreateDigital(abc);
P7_GMX *gx = p7_gmx_Create(gm->M, 100);
P7_TRACE *tr = p7_trace_Create();
float vsc, fsc, nullsc, tracesc;
float avg_fsc;
int idx;
avg_fsc = 0.0;
for (idx = 0; idx < nseq; idx++)
{
if (p7_ProfileEmit(r, hmm, gm, bg, sq, tr) != eslOK) esl_fatal("profile emission failed");
if (p7_gmx_GrowTo(gx, gm->M, sq->n) != eslOK) esl_fatal("failed to reallocate gmx");
if (p7_GViterbi(sq->dsq, sq->n, gm, gx, &vsc) != eslOK) esl_fatal("viterbi failed");
if (p7_GForward(sq->dsq, sq->n, gm, gx, &fsc) != eslOK) esl_fatal("forward failed");
if (p7_trace_Score(tr, sq->dsq, gm, &tracesc) != eslOK) esl_fatal("trace score failed");
if (p7_bg_NullOne(bg, sq->dsq, sq->n, &nullsc) != eslOK) esl_fatal("null score failed");
if (vsc < tracesc) esl_fatal("viterbi score is less than trace");
if (fsc < tracesc) esl_fatal("forward score is less than trace");
if (vsc > fsc) esl_fatal("viterbi score is greater than forward");
if (esl_opt_GetBoolean(go, "--vv"))
printf("generated: len=%d v=%8.4f f=%8.4f t=%8.4f\n", (int) sq->n, vsc, fsc, tracesc);
avg_fsc += (fsc - nullsc);
}
avg_fsc /= (float) nseq;
if (avg_fsc < 0.) esl_fatal("generation: Forward scores have negative expectation (%f nats)", avg_fsc);
p7_gmx_Destroy(gx);
p7_trace_Destroy(tr);
esl_sq_Destroy(sq);
}
int
main(int argc, char **argv)
{
ESL_GETOPTS *go = esl_getopts_CreateDefaultApp(options, 1, argc, argv, banner, usage);
char *hmmfile = esl_opt_GetArg(go, 1);
ESL_STOPWATCH *w = esl_stopwatch_Create();
ESL_RANDOMNESS *r = esl_randomness_CreateFast(esl_opt_GetInteger(go, "-s"));
ESL_ALPHABET *abc = NULL;
P7_HMMFILE *hfp = NULL;
P7_HMM *hmm = NULL;
P7_BG *bg = NULL;
P7_PROFILE *gm = NULL;
P7_GMX *gx = NULL;
int L = esl_opt_GetInteger(go, "-L");
int N = esl_opt_GetInteger(go, "-N");
ESL_DSQ *dsq = malloc(sizeof(ESL_DSQ) * (L+2));
int i;
float sc;
double base_time, bench_time, Mcs;
if (p7_hmmfile_Open(hmmfile, NULL, &hfp) != eslOK) p7_Fail("Failed to open HMM file %s", hmmfile);
if (p7_hmmfile_Read(hfp, &abc, &hmm) != eslOK) p7_Fail("Failed to read HMM");
bg = p7_bg_Create(abc);
p7_bg_SetLength(bg, L);
gm = p7_profile_Create(hmm->M, abc);
p7_ProfileConfig(hmm, bg, gm, L, p7_UNILOCAL);
gx = p7_gmx_Create(gm->M, L);
/* Baseline time. */
esl_stopwatch_Start(w);
for (i = 0; i < N; i++) esl_rsq_xfIID(r, bg->f, abc->K, L, dsq);
esl_stopwatch_Stop(w);
base_time = w->user;
/* Benchmark time. */
esl_stopwatch_Start(w);
for (i = 0; i < N; i++)
{
esl_rsq_xfIID(r, bg->f, abc->K, L, dsq);
p7_GViterbi (dsq, L, gm, gx, &sc);
}
esl_stopwatch_Stop(w);
bench_time = w->user - base_time;
Mcs = (double) N * (double) L * (double) gm->M * 1e-6 / (double) bench_time;
esl_stopwatch_Display(stdout, w, "# CPU time: ");
printf("# M = %d\n", gm->M);
printf("# %.1f Mc/s\n", Mcs);
free(dsq);
p7_gmx_Destroy(gx);
p7_profile_Destroy(gm);
p7_bg_Destroy(bg);
p7_hmm_Destroy(hmm);
p7_hmmfile_Close(hfp);
esl_alphabet_Destroy(abc);
esl_stopwatch_Destroy(w);
esl_randomness_Destroy(r);
esl_getopts_Destroy(go);
return 0;
}
int
main(int argc, char **argv)
{
ESL_GETOPTS *go = esl_getopts_CreateDefaultApp(options, 2, argc, argv, banner, usage);
char *hmmfile = esl_opt_GetArg(go, 1);
char *seqfile = esl_opt_GetArg(go, 2);
ESL_ALPHABET *abc = NULL;
P7_HMMFILE *hfp = NULL;
P7_HMM *hmm = NULL;
P7_BG *bg = NULL;
P7_PROFILE *gm = NULL;
P7_OPROFILE *om = NULL;
P7_OMX *ox = NULL;
P7_GMX *gx = NULL;
ESL_SQ *sq = NULL;
ESL_SQFILE *sqfp = NULL;
int format = eslSQFILE_UNKNOWN;
float vfraw, nullsc, vfscore;
float graw, gscore;
double P, gP;
int status;
/* Read in one HMM */
if (p7_hmmfile_Open(hmmfile, NULL, &hfp) != eslOK) p7_Fail("Failed to open HMM file %s", hmmfile);
if (p7_hmmfile_Read(hfp, &abc, &hmm) != eslOK) p7_Fail("Failed to read HMM");
/* Read in one sequence */
sq = esl_sq_CreateDigital(abc);
status = esl_sqfile_Open(seqfile, format, NULL, &sqfp);
if (status == eslENOTFOUND) p7_Fail("No such file.");
else if (status == eslEFORMAT) p7_Fail("Format unrecognized.");
else if (status == eslEINVAL) p7_Fail("Can't autodetect stdin or .gz.");
else if (status != eslOK) p7_Fail("Open failed, code %d.", status);
/* create default null model, then create and optimize profile */
bg = p7_bg_Create(abc);
p7_bg_SetLength(bg, sq->n);
gm = p7_profile_Create(hmm->M, abc);
p7_ProfileConfig(hmm, bg, gm, sq->n, p7_LOCAL);
om = p7_oprofile_Create(gm->M, abc);
p7_oprofile_Convert(gm, om);
/* allocate DP matrices, both a generic and an optimized one */
ox = p7_omx_Create(gm->M, 0, sq->n);
gx = p7_gmx_Create(gm->M, sq->n);
/* Useful to place and compile in for debugging:
p7_oprofile_Dump(stdout, om); dumps the optimized profile
p7_omx_SetDumpMode(ox, TRUE); makes the fast DP algorithms dump their matrices
p7_gmx_Dump(stdout, gx); dumps a generic DP matrix
*/
while ((status = esl_sqio_Read(sqfp, sq)) == eslOK)
{
p7_oprofile_ReconfigLength(om, sq->n);
p7_ReconfigLength(gm, sq->n);
p7_bg_SetLength(bg, sq->n);
p7_omx_GrowTo(ox, om->M, 0, sq->n);
p7_gmx_GrowTo(gx, gm->M, sq->n);
p7_ViterbiFilter (sq->dsq, sq->n, om, ox, &vfraw);
p7_bg_NullOne (bg, sq->dsq, sq->n, &nullsc);
vfscore = (vfraw - nullsc) / eslCONST_LOG2;
P = esl_gumbel_surv(vfscore, om->evparam[p7_VMU], om->evparam[p7_VLAMBDA]);
p7_GViterbi (sq->dsq, sq->n, gm, gx, &graw);
gscore = (graw - nullsc) / eslCONST_LOG2;
gP = esl_gumbel_surv(gscore, gm->evparam[p7_VMU], gm->evparam[p7_VLAMBDA]);
if (esl_opt_GetBoolean(go, "-1"))
{
printf("%-30s\t%-20s\t%9.2g\t%7.2f\t%9.2g\t%7.2f\n", sq->name, hmm->name, P, vfscore, gP, gscore);
}
else if (esl_opt_GetBoolean(go, "-P"))
{ /* output suitable for direct use in profmark benchmark postprocessors: */
printf("%g\t%.2f\t%s\t%s\n", P, vfscore, sq->name, hmm->name);
}
else
{
printf("target sequence: %s\n", sq->name);
printf("vit filter raw score: %.2f nats\n", vfraw);
printf("null score: %.2f nats\n", nullsc);
printf("per-seq score: %.2f bits\n", vfscore);
printf("P-value: %g\n", P);
printf("GViterbi raw score: %.2f nats\n", graw);
printf("GViterbi seq score: %.2f bits\n", gscore);
printf("GViterbi P-value: %g\n", gP);
}
esl_sq_Reuse(sq);
}
/* cleanup */
esl_sq_Destroy(sq);
esl_sqfile_Close(sqfp);
p7_omx_Destroy(ox);
p7_gmx_Destroy(gx);
p7_oprofile_Destroy(om);
p7_profile_Destroy(gm);
p7_bg_Destroy(bg);
p7_hmm_Destroy(hmm);
p7_hmmfile_Close(hfp);
esl_alphabet_Destroy(abc);
esl_getopts_Destroy(go);
return 0;
}
int
main(int argc, char **argv)
{
ESL_GETOPTS *go = esl_getopts_CreateDefaultApp(options, 1, argc, argv, banner, usage);
char *hmmfile = esl_opt_GetArg(go, 1);
ESL_STOPWATCH *w = esl_stopwatch_Create();
ESL_RANDOMNESS *r = esl_randomness_CreateFast(esl_opt_GetInteger(go, "-s"));
ESL_ALPHABET *abc = NULL;
P7_HMMFILE *hfp = NULL;
P7_HMM *hmm = NULL;
P7_BG *bg = NULL;
P7_PROFILE *gm = NULL;
P7_OPROFILE *om = NULL;
P7_OMX *ox = NULL;
P7_GMX *gx = NULL;
int L = esl_opt_GetInteger(go, "-L");
int N = esl_opt_GetInteger(go, "-N");
ESL_DSQ *dsq = malloc(sizeof(ESL_DSQ) * (L+2));
int i;
float sc1, sc2;
double base_time, bench_time, Mcs;
if (p7_hmmfile_Open(hmmfile, NULL, &hfp) != eslOK) p7_Fail("Failed to open HMM file %s", hmmfile);
if (p7_hmmfile_Read(hfp, &abc, &hmm) != eslOK) p7_Fail("Failed to read HMM");
bg = p7_bg_Create(abc);
p7_bg_SetLength(bg, L);
gm = p7_profile_Create(hmm->M, abc);
p7_ProfileConfig(hmm, bg, gm, L, p7_LOCAL);
om = p7_oprofile_Create(gm->M, abc);
p7_oprofile_Convert(gm, om);
p7_oprofile_ReconfigLength(om, L);
if (esl_opt_GetBoolean(go, "-x")) p7_profile_SameAsVF(om, gm);
ox = p7_omx_Create(gm->M, 0, 0);
gx = p7_gmx_Create(gm->M, L);
/* Get a baseline time: how long it takes just to generate the sequences */
esl_stopwatch_Start(w);
for (i = 0; i < N; i++)
esl_rsq_xfIID(r, bg->f, abc->K, L, dsq);
esl_stopwatch_Stop(w);
base_time = w->user;
/* Run the benchmark */
esl_stopwatch_Start(w);
for (i = 0; i < N; i++)
{
esl_rsq_xfIID(r, bg->f, abc->K, L, dsq);
p7_ViterbiFilter(dsq, L, om, ox, &sc1);
if (esl_opt_GetBoolean(go, "-c"))
{
p7_GViterbi(dsq, L, gm, gx, &sc2);
printf("%.4f %.4f\n", sc1, sc2);
}
if (esl_opt_GetBoolean(go, "-x"))
{
p7_GViterbi(dsq, L, gm, gx, &sc2);
sc2 /= om->scale_w;
if (om->mode == p7_UNILOCAL) sc2 -= 2.0; /* that's ~ L \log \frac{L}{L+2}, for our NN,CC,JJ */
else if (om->mode == p7_LOCAL) sc2 -= 3.0; /* that's ~ L \log \frac{L}{L+3}, for our NN,CC,JJ */
printf("%.4f %.4f\n", sc1, sc2);
}
}
esl_stopwatch_Stop(w);
bench_time = w->user - base_time;
Mcs = (double) N * (double) L * (double) gm->M * 1e-6 / (double) bench_time;
esl_stopwatch_Display(stdout, w, "# CPU time: ");
printf("# M = %d\n", gm->M);
printf("# %.1f Mc/s\n", Mcs);
free(dsq);
p7_omx_Destroy(ox);
p7_gmx_Destroy(gx);
p7_oprofile_Destroy(om);
p7_profile_Destroy(gm);
p7_bg_Destroy(bg);
p7_hmm_Destroy(hmm);
p7_hmmfile_Close(hfp);
esl_alphabet_Destroy(abc);
esl_stopwatch_Destroy(w);
esl_randomness_Destroy(r);
esl_getopts_Destroy(go);
return 0;
}
int
main(int argc, char **argv)
{
ESL_GETOPTS *go = p7_CreateDefaultApp(options, 2, argc, argv, banner, usage);
char *hmmfile = esl_opt_GetArg(go, 1);
char *seqfile = esl_opt_GetArg(go, 2);
ESL_ALPHABET *abc = NULL;
P7_HMMFILE *hfp = NULL;
P7_HMM *hmm = NULL;
P7_BG *bg = NULL;
P7_PROFILE *gm = NULL;
P7_GMX *gx1 = NULL;
P7_GMX *gx2 = NULL;
ESL_SQ *sq = NULL;
ESL_SQFILE *sqfp = NULL;
P7_TRACE *tr = NULL;
int format = eslSQFILE_UNKNOWN;
char errbuf[eslERRBUFSIZE];
float fsc, bsc, vsc;
float accscore;
int status;
/* Read in one HMM */
if (p7_hmmfile_OpenE(hmmfile, NULL, &hfp, NULL) != eslOK) p7_Fail("Failed to open HMM file %s", hmmfile);
if (p7_hmmfile_Read(hfp, &abc, &hmm) != eslOK) p7_Fail("Failed to read HMM");
p7_hmmfile_Close(hfp);
/* Read in one sequence */
sq = esl_sq_CreateDigital(abc);
status = esl_sqfile_OpenDigital(abc, seqfile, format, NULL, &sqfp);
if (status == eslENOTFOUND) p7_Fail("No such file.");
else if (status == eslEFORMAT) p7_Fail("Format unrecognized.");
else if (status == eslEINVAL) p7_Fail("Can't autodetect stdin or .gz.");
else if (status != eslOK) p7_Fail("Open failed, code %d.", status);
if (esl_sqio_Read(sqfp, sq) != eslOK) p7_Fail("Failed to read sequence");
esl_sqfile_Close(sqfp);
/* Configure a profile from the HMM */
bg = p7_bg_Create(abc);
p7_bg_SetLength(bg, sq->n);
gm = p7_profile_Create(hmm->M, abc);
p7_ProfileConfig(hmm, bg, gm, sq->n, p7_LOCAL); /* multihit local: H3 default */
/* Allocations */
gx1 = p7_gmx_Create(gm->M, sq->n);
gx2 = p7_gmx_Create(gm->M, sq->n);
tr = p7_trace_CreateWithPP();
p7_FLogsumInit();
/* Run Forward, Backward; do OA fill and trace */
p7_GForward (sq->dsq, sq->n, gm, gx1, &fsc);
p7_GBackward(sq->dsq, sq->n, gm, gx2, &bsc);
p7_GDecoding(gm, gx1, gx2, gx2); /* <gx2> is now the posterior decoding matrix */
p7_GOptimalAccuracy(gm, gx2, gx1, &accscore); /* <gx1> is now the OA matrix */
p7_GOATrace(gm, gx2, gx1, tr);
if (esl_opt_GetBoolean(go, "-d")) p7_gmx_Dump(stdout, gx2, p7_DEFAULT);
if (esl_opt_GetBoolean(go, "-m")) p7_gmx_Dump(stdout, gx1, p7_DEFAULT);
p7_trace_Dump(stdout, tr, gm, sq->dsq);
if (p7_trace_Validate(tr, abc, sq->dsq, errbuf) != eslOK) p7_Die("trace fails validation:\n%s\n", errbuf);
printf("fwd = %.4f nats\n", fsc);
printf("bck = %.4f nats\n", bsc);
printf("acc = %.4f (%.2f%%)\n", accscore, accscore * 100. / (float) sq->n);
p7_trace_Reuse(tr);
p7_GViterbi(sq->dsq, sq->n, gm, gx1, &vsc);
p7_GTrace (sq->dsq, sq->n, gm, gx1, tr);
p7_trace_SetPP(tr, gx2);
p7_trace_Dump(stdout, tr, gm, sq->dsq);
printf("vit = %.4f nats\n", vsc);
printf("acc = %.4f\n", p7_trace_GetExpectedAccuracy(tr));
/* Cleanup */
esl_sq_Destroy(sq);
p7_trace_Destroy(tr);
p7_gmx_Destroy(gx1);
p7_gmx_Destroy(gx2);
p7_profile_Destroy(gm);
p7_bg_Destroy(bg);
p7_hmm_Destroy(hmm);
esl_alphabet_Destroy(abc);
esl_getopts_Destroy(go);
return 0;
}
/* Function: p7_ViterbiScore()
* Synopsis: Calculates Viterbi score.
* Incept: MSF, Tue Nov 03, 2009 [Janelia]
*
* Purpose: Calculates the Viterbi score for sequence <dsq> of
* length <L> residues, using profile <om>. Return the
* Viterbi score (in nats) in <ret_sc>.
*
* The score is calculated using the generic Viterbi
* routine.
*
* Args: dsq - digital target sequence, 1..L
* L - length of dsq in residues
* om - optimized profile
* ox - DP matrix
* ret_sc - RETURN: Viterbi score (in nats)
*
* Returns: <eslOK> on success.
*/
int
p7_ViterbiScore(const ESL_DSQ *dsq, int L, const P7_OPROFILE *om, P7_OMX *ox, float *ret_sc)
{
return p7_GViterbi(dsq, L, om, ox, ret_sc);
}
int
main(int argc, char **argv)
{
ESL_GETOPTS *go = esl_getopts_CreateDefaultApp(options, 2, argc, argv, banner, usage);
char *hmmfile = esl_opt_GetArg(go, 1);
char *seqfile = esl_opt_GetArg(go, 2);
ESL_ALPHABET *abc = NULL;
ESL_RANDOMNESS *rng = esl_randomness_CreateFast(0);
P7_HMMFILE *hfp = NULL;
P7_HMM *hmm = NULL;
P7_BG *bg = NULL;
P7_PROFILE *gm = NULL;
P7_OPROFILE *om = NULL;
P7_GMX *gx = NULL;
P7_OMX *fwd = NULL;
P7_TRACE *tr = NULL;
ESL_SQ *sq = NULL;
ESL_SQFILE *sqfp = NULL;
int format = eslSQFILE_UNKNOWN;
int N = esl_opt_GetInteger(go, "-N");
int i;
float vsc, fsc, tsc;
char errbuf[eslERRBUFSIZE];
int status;
/* Read in one HMM */
if (p7_hmmfile_Open(hmmfile, NULL, &hfp) != eslOK) p7_Fail("Failed to open HMM file %s", hmmfile);
if (p7_hmmfile_Read(hfp, &abc, &hmm) != eslOK) p7_Fail("Failed to read HMM");
/* Read in one sequence */
sq = esl_sq_CreateDigital(abc);
status = esl_sqfile_Open(seqfile, format, NULL, &sqfp);
if (status == eslENOTFOUND) p7_Fail("No such file.");
else if (status == eslEFORMAT) p7_Fail("Format unrecognized.");
else if (status == eslEINVAL) p7_Fail("Can't autodetect stdin or .gz.");
else if (status != eslOK) p7_Fail("Open failed, code %d.", status);
if (esl_sqio_Read(sqfp, sq) != eslOK) p7_Fail("Failed to read sequence");
/* create default null model, then create and optimize profile */
bg = p7_bg_Create(abc); p7_bg_SetLength(bg, sq->n);
gm = p7_profile_Create(hmm->M, abc); p7_ProfileConfig(hmm, bg, gm, sq->n, p7_LOCAL);
om = p7_oprofile_Create(gm->M, abc); p7_oprofile_Convert(gm, om);
if (esl_opt_GetBoolean(go, "-p")) p7_oprofile_Dump(stdout, om);
fwd = p7_omx_Create(gm->M, sq->n, sq->n);
gx = p7_gmx_Create(gm->M, sq->n);
tr = p7_trace_Create();
if (esl_opt_GetBoolean(go, "-m") == TRUE) p7_omx_SetDumpMode(stdout, fwd, TRUE);
p7_GViterbi(sq->dsq, sq->n, gm, gx, &vsc);
p7_Forward (sq->dsq, sq->n, om, fwd, &fsc);
for (i = 0; i < N; i++)
{
p7_StochasticTrace(rng, sq->dsq, sq->n, om, fwd, tr);
p7_trace_Score(tr, sq->dsq, gm, &tsc);
if (esl_opt_GetBoolean(go, "-t") == TRUE) p7_trace_Dump(stdout, tr, gm, sq->dsq);
if (p7_trace_Validate(tr, abc, sq->dsq, errbuf) != eslOK) p7_Die("trace %d fails validation:\n%s\n", i, errbuf);
printf("Sampled trace: %.4f nats\n", tsc);
p7_trace_Reuse(tr);
}
printf("Forward score: %.4f nats\n", fsc);
printf("Viterbi score: %.4f nats\n", vsc);
/* cleanup */
esl_sq_Destroy(sq);
esl_sqfile_Close(sqfp);
p7_trace_Destroy(tr);
p7_omx_Destroy(fwd);
p7_gmx_Destroy(gx);
p7_oprofile_Destroy(om);
p7_profile_Destroy(gm);
p7_bg_Destroy(bg);
p7_hmm_Destroy(hmm);
p7_hmmfile_Close(hfp);
esl_randomness_Destroy(rng);
esl_alphabet_Destroy(abc);
esl_getopts_Destroy(go);
return 0;
}
int
main(int argc, char **argv)
{
ESL_GETOPTS *go = esl_getopts_CreateDefaultApp(options, 1, argc, argv, banner, usage);
char *hmmfile = esl_opt_GetArg(go, 1);
ESL_STOPWATCH *w = esl_stopwatch_Create();
ESL_RANDOMNESS *r = esl_randomness_CreateFast(esl_opt_GetInteger(go, "-s"));
ESL_ALPHABET *abc = NULL;
P7_HMMFILE *hfp = NULL;
P7_HMM *hmm = NULL;
P7_BG *bg = NULL;
P7_PROFILE *gm = NULL;
P7_OPROFILE *om = NULL;
P7_GMX *gx = NULL;
P7_OMX *fwd = NULL;
P7_TRACE *tr = NULL;
int L = esl_opt_GetInteger(go, "-L");
int N = esl_opt_GetInteger(go, "-N");
ESL_DSQ *dsq = malloc(sizeof(ESL_DSQ) * (L+2));
int i;
float sc, fsc, vsc;
float bestsc = -eslINFINITY;
if (p7_hmmfile_Open(hmmfile, NULL, &hfp) != eslOK) p7_Fail("Failed to open HMM file %s", hmmfile);
if (p7_hmmfile_Read(hfp, &abc, &hmm) != eslOK) p7_Fail("Failed to read HMM");
bg = p7_bg_Create(abc); p7_bg_SetLength(bg, L);
gm = p7_profile_Create(hmm->M, abc); p7_ProfileConfig(hmm, bg, gm, L, p7_UNILOCAL);
om = p7_oprofile_Create(gm->M, abc); p7_oprofile_Convert(gm, om);
fwd = p7_omx_Create(gm->M, L, L);
gx = p7_gmx_Create(gm->M, L);
tr = p7_trace_Create();
esl_rsq_xfIID(r, bg->f, abc->K, L, dsq);
p7_GViterbi(dsq, L, gm, gx, &vsc);
p7_Forward (dsq, L, om, fwd, &fsc);
esl_stopwatch_Start(w);
for (i = 0; i < N; i++)
{
p7_StochasticTrace(r, dsq, L, om, fwd, tr);
p7_trace_Score(tr, dsq, gm, &sc);
bestsc = ESL_MAX(bestsc, sc);
p7_trace_Reuse(tr);
}
esl_stopwatch_Stop(w);
esl_stopwatch_Display(stdout, w, "# CPU time: ");
printf("forward sc = %.4f nats\n", fsc);
printf("viterbi sc = %.4f nats\n", vsc);
printf("max trace sc = %.4f nats\n", bestsc);
free(dsq);
p7_trace_Destroy(tr);
p7_gmx_Destroy(gx);
p7_omx_Destroy(fwd);
p7_oprofile_Destroy(om);
p7_profile_Destroy(gm);
p7_bg_Destroy(bg);
p7_hmm_Destroy(hmm);
p7_hmmfile_Close(hfp);
esl_alphabet_Destroy(abc);
esl_stopwatch_Destroy(w);
esl_randomness_Destroy(r);
esl_getopts_Destroy(go);
return 0;
}
/* The "enumeration" test samples a random enumerable HMM (transitions to insert are 0,
* so the generated seq space only includes seqs of L<=M).
*
* The test scores all seqs of length <=M by both Viterbi and Forward, verifies that
* the two scores are identical, and verifies that the sum of all the probabilities is
* 1.0. It also verifies that the score of a sequence of length M+1 is indeed -infinity.
*
* Because this function is going to work in unscaled probabilities, adding them up,
* all P(seq) terms must be >> DBL_EPSILON. That means M must be small; on the order
* of <= 10.
*/
static void
utest_enumeration(ESL_GETOPTS *go, ESL_RANDOMNESS *r, ESL_ALPHABET *abc, int M)
{
char errbuf[eslERRBUFSIZE];
P7_HMM *hmm = NULL;
P7_PROFILE *gm = NULL;
P7_BG *bg = NULL;
ESL_DSQ *dsq = NULL;
P7_GMX *gx = NULL;
float vsc, fsc;
float bg_ll; /* log P(seq | bg) */
double vp, fp; /* P(seq,\pi | model) and P(seq | model) */
int L;
int i;
double total_p;
char *seq;
/* Sample an enumerable HMM & profile of length M.
*/
if (p7_hmm_SampleEnumerable(r, M, abc, &hmm) != eslOK) esl_fatal("failed to sample an enumerable HMM");
if ((bg = p7_bg_Create(abc)) == NULL) esl_fatal("failed to create null model");
if ((gm = p7_profile_Create(hmm->M, abc)) == NULL) esl_fatal("failed to create profile");
if (p7_ProfileConfig(hmm, bg, gm, 0, p7_UNILOCAL) != eslOK) esl_fatal("failed to config profile");
if (p7_hmm_Validate (hmm, errbuf, 0.0001) != eslOK) esl_fatal("whoops, HMM is bad!: %s", errbuf);
if (p7_profile_Validate(gm, errbuf, 0.0001) != eslOK) esl_fatal("whoops, profile is bad!: %s", errbuf);
if ( (dsq = malloc(sizeof(ESL_DSQ) * (M+3))) == NULL) esl_fatal("allocation failed");
if ( (seq = malloc(sizeof(char) * (M+2))) == NULL) esl_fatal("allocation failed");
if ((gx = p7_gmx_Create(hmm->M, M+3)) == NULL) esl_fatal("matrix creation failed");
/* Enumerate all sequences of length L <= M
*/
total_p = 0;
for (L = 0; L <= M; L++)
{
/* Initialize dsq of length L at 0000... */
dsq[0] = dsq[L+1] = eslDSQ_SENTINEL;
for (i = 1; i <= L; i++) dsq[i] = 0;
while (1) /* enumeration of seqs of length L*/
{
if (p7_GViterbi(dsq, L, gm, gx, &vsc) != eslOK) esl_fatal("viterbi failed");
if (p7_GForward(dsq, L, gm, gx, &fsc) != eslOK) esl_fatal("forward failed");
/* calculate bg log likelihood component of the scores */
for (bg_ll = 0., i = 1; i <= L; i++) bg_ll += log(bg->f[dsq[i]]);
/* convert to probabilities, adding the bg LL back to the LLR */
vp = exp(vsc + bg_ll);
fp = exp(fsc + bg_ll);
if (esl_opt_GetBoolean(go, "--vv")) {
esl_abc_Textize(abc, dsq, L, seq);
printf("probability of sequence: %10s %16g (lod v=%8.4f f=%8.4f)\n", seq, fp, vsc, fsc);
}
total_p += fp;
/* Increment dsq like a reversed odometer */
for (i = 1; i <= L; i++)
if (dsq[i] < abc->K-1) { dsq[i]++; break; } else { dsq[i] = 0; }
if (i > L) break; /* we're done enumerating sequences */
}
}
/* That sum is subject to significant numerical error because of
* discretization error in FLogsum(); don't expect it to be too close.
*/
if (total_p < 0.999 || total_p > 1.001) esl_fatal("Enumeration unit test failed: total Forward p isn't near 1.0 (%g)", total_p);
if (esl_opt_GetBoolean(go, "-v")) {
printf("enumeration test: total p is %g\n", total_p);
}
p7_gmx_Destroy(gx);
p7_bg_Destroy(bg);
p7_profile_Destroy(gm);
p7_hmm_Destroy(hmm);
free(dsq);
free(seq);
}
int
main(int argc, char **argv)
{
ESL_GETOPTS *go = esl_getopts_CreateDefaultApp(options, 2, argc, argv, banner, usage);
char *hmmfile = esl_opt_GetArg(go, 1);
char *seqfile = esl_opt_GetArg(go, 2);
ESL_ALPHABET *abc = NULL;
P7_HMMFILE *hfp = NULL;
P7_HMM *hmm = NULL;
P7_BG *bg = NULL;
P7_PROFILE *gm = NULL;
P7_GMX *fwd = NULL;
ESL_SQ *sq = NULL;
ESL_SQFILE *sqfp = NULL;
P7_TRACE *tr = NULL;
int format = eslSQFILE_UNKNOWN;
char errbuf[eslERRBUFSIZE];
float sc;
int d;
int status;
/* Read in one HMM */
if (p7_hmmfile_Open(hmmfile, NULL, &hfp) != eslOK) p7_Fail("Failed to open HMM file %s", hmmfile);
if (p7_hmmfile_Read(hfp, &abc, &hmm) != eslOK) p7_Fail("Failed to read HMM");
p7_hmmfile_Close(hfp);
/* Read in one sequence */
sq = esl_sq_CreateDigital(abc);
status = esl_sqfile_Open(seqfile, format, NULL, &sqfp);
if (status == eslENOTFOUND) p7_Fail("No such file.");
else if (status == eslEFORMAT) p7_Fail("Format unrecognized.");
else if (status == eslEINVAL) p7_Fail("Can't autodetect stdin or .gz.");
else if (status != eslOK) p7_Fail("Open failed, code %d.", status);
if (esl_sqio_Read(sqfp, sq) != eslOK) p7_Fail("Failed to read sequence");
esl_sqfile_Close(sqfp);
/* Configure a profile from the HMM */
bg = p7_bg_Create(abc);
p7_bg_SetLength(bg, sq->n);
gm = p7_profile_Create(hmm->M, abc);
p7_ProfileConfig(hmm, bg, gm, sq->n, p7_LOCAL);
/* Allocate matrix and a trace */
fwd = p7_gmx_Create(gm->M, sq->n);
tr = p7_trace_Create();
/* Run Viterbi; do traceback */
p7_GViterbi (sq->dsq, sq->n, gm, fwd, &sc);
p7_GTrace (sq->dsq, sq->n, gm, fwd, tr);
/* Dump and validate the trace. */
p7_trace_Dump(stdout, tr, gm, sq->dsq);
if (p7_trace_Validate(tr, abc, sq->dsq, errbuf) != eslOK) p7_Die("trace fails validation:\n%s\n", errbuf);
/* Domain info in the trace. */
p7_trace_Index(tr);
printf("# Viterbi: %d domains : ", tr->ndom);
for (d = 0; d < tr->ndom; d++) printf("%6d %6d %6d %6d ", tr->sqfrom[d], tr->sqto[d], tr->hmmfrom[d], tr->hmmto[d]);
printf("\n");
/* Cleanup */
p7_trace_Destroy(tr);
p7_gmx_Destroy(fwd);
p7_profile_Destroy(gm);
p7_bg_Destroy(bg);
p7_hmm_Destroy(hmm);
esl_sq_Destroy(sq);
esl_alphabet_Destroy(abc);
esl_getopts_Destroy(go);
return 0;
}
int
main(int argc, char **argv)
{
char *hmmfile = argv[1];
char *seqfile = argv[2];
ESL_ALPHABET *abc = NULL;
P7_HMMFILE *hfp = NULL;
P7_HMM *hmm = NULL;
P7_BG *bg = NULL;
P7_PROFILE *gm = NULL;
P7_OPROFILE *om = NULL;
P7_OMX *ox = NULL;
P7_GMX *gx = NULL;
ESL_SQ *sq = NULL;
ESL_SQFILE *sqfp = NULL;
int format = eslSQFILE_UNKNOWN;
float sc;
int status;
/* Read in one HMM */
if (p7_hmmfile_Open(hmmfile, NULL, &hfp) != eslOK) p7_Fail("Failed to open HMM file %s", hmmfile);
if (p7_hmmfile_Read(hfp, &abc, &hmm) != eslOK) p7_Fail("Failed to read HMM");
/* Read in one sequence */
sq = esl_sq_CreateDigital(abc);
status = esl_sqfile_Open(seqfile, format, NULL, &sqfp);
if (status == eslENOTFOUND) p7_Fail("No such file.");
else if (status == eslEFORMAT) p7_Fail("Format unrecognized.");
else if (status == eslEINVAL) p7_Fail("Can't autodetect stdin or .gz.");
else if (status != eslOK) p7_Fail("Open failed, code %d.", status);
if (esl_sqio_Read(sqfp, sq) != eslOK) p7_Fail("Failed to read sequence");
/* create default null model, then create and optimize profile */
bg = p7_bg_Create(abc);
p7_bg_SetLength(bg, sq->n);
gm = p7_profile_Create(hmm->M, abc);
p7_ProfileConfig(hmm, bg, gm, sq->n, p7_LOCAL);
om = p7_oprofile_Create(gm->M, abc);
p7_oprofile_Convert(gm, om);
p7_oprofile_Logify(om);
/* allocate DP matrices, both a generic and an optimized one */
ox = p7_omx_Create(gm->M, 0, sq->n);
gx = p7_gmx_Create(gm->M, sq->n);
/* Useful to place and compile in for debugging:
p7_oprofile_Dump(stdout, om); dumps the optimized profile
p7_omx_SetDumpMode(ox, TRUE); makes the fast DP algorithms dump their matrices
p7_gmx_Dump(stdout, gx); dumps a generic DP matrix
*/
p7_ViterbiScore(sq->dsq, sq->n, om, ox, &sc); printf("viterbi (non-optimized): %.2f nats\n", sc);
p7_GViterbi (sq->dsq, sq->n, gm, gx, &sc); printf("viterbi (generic): %.2f nats\n", sc);
/* now in a real app, you'd need to convert raw nat scores to final bit
* scores, by subtracting the null model score and rescaling.
*/
/* cleanup */
esl_sq_Destroy(sq);
esl_sqfile_Close(sqfp);
p7_omx_Destroy(ox);
p7_gmx_Destroy(gx);
p7_oprofile_Destroy(om);
p7_profile_Destroy(gm);
p7_bg_Destroy(bg);
p7_hmm_Destroy(hmm);
p7_hmmfile_Close(hfp);
esl_alphabet_Destroy(abc);
return 0;
}
