int do_rmdir(const char* path)
{
int ret;
dprintf(stderr, "Requesting rmdie: %s \n", path);
ret = simple_op(COREFS_SIMPLE_RMDIR, path, 0, 0, NULL);
return ret;
}
int do_rename(const char* from, const char* to)
{
int ret = 0;
dprintf(stderr, "attempting to rename %s to %s\n", from,to);
ret = simple_op(COREFS_SIMPLE_RENAME, from, 0, 0, to);
return ret;
}
int do_mkdir(const char* path, mode_t mode)
{
int ret;
dprintf(stderr, "attempting to mkdir %s with perms %x\n", path, mode);
ret = simple_op(COREFS_SIMPLE_MKDIR, path, 0, mode, NULL);
return ret;
}
int do_link(const char* from, const char* to)
{
#ifdef DEBUG
dprintf(stderr, "SYMLINK: old \'%s\' new \'%s\'\n", from, to);
#endif
return simple_op(COREFS_SIMPLE_LINK, from, 0, 0, to);
}
int do_access(const char* path, int mode){
#ifdef DEBUG
dprintf(stderr, "ACCESS: path[%s] : mode[%d]\n", path,mode);
#endif
int ret = simple_op(COREFS_SIMPLE_ACCESS, path, 0, mode, NULL);
return ret;
}
int do_release(const char *path, struct fuse_file_info *fi)
{
#ifdef DEBUG
dprintf(stderr, "RELEASE: %s \n", path);
#endif
simple_op(COREFS_SIMPLE_RELEASE, path, 0, fi->flags, NULL);
return 0;
}
int do_open(const char *path, struct fuse_file_info *fi)
{
#ifdef DEBUG
dprintf(stderr, "OPEN: %s \n", path);
#endif
int ret = simple_op(COREFS_SIMPLE_OPEN, path, 0, fi->flags, NULL);
return ret;
}
int do_mknod(const char *path, mode_t mode, dev_t rdev)
{
int ret = 0;
#ifdef DEBUG
dprintf(stderr, "MKNOD: %s \n", path);
#endif
ret = simple_op(COREFS_SIMPLE_MKNOD, path, 0, mode, NULL);
return ret;
}
int do_truncate(const char *path, off_t size)
{
int ret = 0;
#ifdef DEBUG
dprintf(stderr, "TRUNCATE: %s : %llu\n", path, size);
#endif
ret = simple_op(COREFS_SIMPLE_TRUNCATE, path, size, 0, NULL);
return ret;
}
int do_unlink(const char *path)
{
int ret;
#ifdef DEBUG
dprintf(stderr, "UNLINK: %s \n", path);
#endif
ret = simple_op(COREFS_SIMPLE_UNLINK, path, 0, 0, NULL);
return ret;
}
int do_chmod(const char *path, mode_t mode)
{
#ifdef DEBUG
dprintf(stderr, "CHMOD: %s mode %u\n", path, mode);
#endif
/* we assume that the uid and gid of the user is same at the client
* and server side. The upper layer can performing its own
* mapping, if necessary. */
return simple_op(COREFS_SIMPLE_CHMOD, path, 0, mode, NULL);
}
int do_utime (const char * path, struct utimbuf * tbuf){
/* we use offset and mode1 variables for actime and modtime,
* respectively */
if(tbuf == NULL){
struct timeval tv;
struct timezone tz;
gettimeofday(&tv, &tz);
#ifdef DEBUG
dprintf(stderr, "UTIME: %s actime %lu modtime %lu\n",
path, tv.tv_sec,tv.tv_sec);
#endif
simple_op(COREFS_SIMPLE_UTIME, path, tv.tv_sec, tv.tv_sec, NULL);
}
#ifdef DEBUG
dprintf(stderr, "UTIME: %s actime %lu modtime %lu\n", path,
tbuf->actime, tbuf->modtime);
#endif
return simple_op(COREFS_SIMPLE_UTIME, path, tbuf->actime,
tbuf->modtime, NULL);
}
int do_symlink(const char* from, const char* to)
{
dprintf(stderr, "Requesting SYMLINK: %s : %s \n", from, to);
return simple_op(COREFS_SIMPLE_SYMLINK, from, 0, 0, to);
}
void simpler_test (size_t n_train_sample, size_t n_test_sample, size_t n_in, TestParams params)
{
params.n_batch = std::min(params.n_batch, n_train_sample);
std::string serialpath = params.savepath;
params.hiddens = { n_in, n_in, n_in / 2 };
DBNTrainer model(n_in, params.hiddens, "dbn_simple_learner");
// generate test sample
std::vector<float> train_samples = batch_generate(n_train_sample, n_in);
std::vector<float> test_samples = batch_generate(n_test_sample, n_in);
std::vector<float> train_out = simple_op(train_samples);
std::vector<float> test_out = simple_op(test_samples);
if (params.train)
{
// pretrain
if (params.pretrain)
{
model.initialize();
pretrain(model, n_in, train_samples, params, "demo");
model.save(serialpath, "dbn_demo_pretrain");
}
else
{
model.initialize(serialpath, "dbn_demo_pretrain");
}
// finetune
float inbatch = params.n_batch * n_in;
float outbatch = inbatch / 2;
nnet::placeholder<float> finetune_in(std::vector<size_t>{n_in, params.n_batch}, "finetune_in");
nnet::placeholder<float> finetune_out(std::vector<size_t>{n_in / 2, params.n_batch}, "finetune_out");
rocnnet::update_cost_t tuner = model.build_finetune_functions(finetune_in, finetune_out, params.training_lr);
nnet::variable_updater<float> train_update = tuner.first;
size_t n_train_batches = n_train_sample / params.n_batch;
auto xit = train_samples.begin();
auto yit = train_out.begin();
for (size_t epoch = 0; epoch < params.training_epochs; epoch++)
{
for (size_t mb_idx = 0; mb_idx < n_train_batches; mb_idx++)
{
std::vector<float> xbatch(xit + mb_idx * inbatch, xit + (mb_idx + 1) * inbatch);
std::vector<float> ybatch(yit + mb_idx * outbatch, yit + (mb_idx + 1) * outbatch);
finetune_in = xbatch;
finetune_out = ybatch;
train_update(true);
std::cout << "epoch " << epoch << " fine tuning index " << mb_idx << '\n';
}
}
model.save(serialpath, "dbn_demo");
}
else
{
model.initialize(serialpath, "dbn_demo");
}
// test
nnet::placeholder<float> test_in(std::vector<size_t>{n_in}, "test_in");
nnet::placeholder<float> expect_out(std::vector<size_t>{n_in / 2}, "expect_out");
nnet::varptr<float> test_res = model.prop_up(nnet::varptr<float>(&test_in));
nnet::varptr<float> test_error = nnet::reduce_mean(
nnet::sqrt<float>(nnet::varptr<float>(&expect_out) - test_res));
auto xit = test_samples.begin();
auto yit = test_out.begin();
float total_err = 0;
for (size_t i = 0; i < n_test_sample; ++i)
{
std::vector<float> xbatch(xit + i * n_in, xit + (i + 1) * n_in);
std::vector<float> ybatch(yit + i * n_in / 2, yit + (i + 1) * n_in / 2);
test_in = xbatch;
expect_out = ybatch;
float test_err = nnet::expose<float>(test_error)[0];
total_err += test_err;
std::cout << "test error at " << i << ": " << test_err << '\n';
}
std::cout << "total error " << total_err << '\n';
}