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filter.cu
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filter.cu
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/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "filter.h"
#include "zone_map.h"
#include <iomanip>
#include <iostream>
#include <sstream>
struct cmp_functor_dict
{
const unsigned long long* source;
bool *dest;
const unsigned int *pars;
cmp_functor_dict(const unsigned long long int* _source, bool * _dest, const unsigned int * _pars):
source(_source), dest(_dest), pars(_pars) {}
template <typename IndexType>
__host__ __device__
void operator()(const IndexType & i) {
unsigned int idx = pars[0];
unsigned int cmp = pars[1];
unsigned int bits = ((unsigned int*)source)[1];
unsigned int fit_count = ((unsigned int*)source)[0];
unsigned int int_sz = 64;
//find the source index
unsigned int src_idx = i/fit_count;
// find the exact location
unsigned int src_loc = i%fit_count;
//right shift the values
unsigned int shifted = ((fit_count-src_loc)-1)*bits;
unsigned long long int tmp = source[src_idx+2] >> shifted;
// set the rest of bits to 0
tmp = tmp << (int_sz - bits);
tmp = tmp >> (int_sz - bits);
//printf("COMP1 %llu %d \n", tmp, idx);
if(cmp == 4) { // ==
if(tmp == idx)
dest[i] = 1;
else
dest[i] = 0;
}
else { // !=
if(tmp == idx)
dest[i] = 0;
else
dest[i] = 1;
};
}
};
struct gpu_regex
{
char *source;
char *pattern;
bool * dest;
const unsigned int *len;
gpu_regex(char * _source,char * _pattern, bool * _dest,
const unsigned int * _len):
source(_source), pattern(_pattern), dest(_dest), len(_len) {}
template <typename IndexType>
__host__ __device__
void operator()(const IndexType & i) {
bool star = 0;
int j = 0;
char* s;
char* p;
char* str = source + len[0]*i;
char* pat = pattern;
loopStart:
for (s = str, p = pat; j < len[0] && *s; ++s, ++p, ++j) {
switch (*p) {
case '?':
if (*s == '.')
goto starCheck;
break;
case '%':
star = 1;
str = s, pat = p;
do {
++pat;
}
while (*pat == '%');
if (!*pat) {
dest[i] = 1;
return;
}
goto loopStart;
default
:
if (*s != *p)
goto starCheck;
break;
} /* endswitch */
} /* endfor */
while (*p == '%')
++p;
dest[i] = !*p;
return;
starCheck:
if (!star) {
dest[i] = 0;
return;
};
str++;
j++;
goto loopStart;
}
};
bool* filter(queue<string> op_type, queue<string> op_value, queue<int_type> op_nums,queue<float_type> op_nums_f, queue<unsigned int> op_nums_precision, CudaSet* a,
unsigned int segment)
{
stack<string> exe_type;
stack<string> exe_value;
stack<int_type*> exe_vectors;
stack<unsigned int> exe_precision;
stack<int_type> exe_nums;
stack<bool*> bool_vectors;
string s1, s2, s1_val, s2_val;
int_type n1, n2, res;
bool free_mem, free_mem1;
for(int i=0; !op_type.empty(); ++i, op_type.pop()) {
string ss = op_type.front();
//cout << endl << ss << " " << op_nums.size() << " " << op_nums_precision.size() << endl;
if (ss.compare("NAME") == 0 || ss.compare("NUMBER") == 0 || ss.compare("FLOAT") == 0
|| ss.compare("STRING") == 0 || ss.compare("FIELD") == 0) {
if (ss.compare("NUMBER") == 0) {
exe_nums.push(op_nums.front());
op_nums.pop();
exe_type.push(ss);
exe_precision.push(op_nums_precision.front());
op_nums_precision.pop();
}
else
if (ss.compare("NAME") == 0 || ss.compare("STRING") == 0) {
exe_value.push(op_value.front());
op_value.pop();
exe_type.push(ss);
}
else
if(ss.compare("FIELD") == 0) {
size_t pos1 = op_value.front().find_first_of(".", 0);
string tbl = op_value.front().substr(0,pos1);
string field = op_value.front().substr(pos1+1, string::npos);
op_value.pop();
CudaSet *b = varNames.find(tbl)->second;
auto val = b->h_columns_int[field][0];
exe_nums.push(val);
exe_type.push("NUMBER");
}
}
else {
if (ss.compare("MUL") == 0 || ss.compare("ADD") == 0 || ss.compare("DIV") == 0 || ss.compare("MINUS") == 0) {
// get 2 values from the stack
s1 = exe_type.top();
exe_type.pop();
s2 = exe_type.top();
exe_type.pop();
if (s1.compare("NAME") == 0 && s2.compare("STRING") == 0) {
s1_val = exe_value.top();
exe_value.pop();
s2_val = exe_value.top();
exe_value.pop();
int_type* t = get_vec(a, s1_val, exe_vectors, free_mem);
exe_type.push("NAME");
exe_value.push("");
exe_precision.push(0);
}
else
if (s2.compare("NAME") == 0 && s1.compare("STRING") == 0) {
s2_val = exe_value.top();
exe_value.pop();
s1_val = exe_value.top();
exe_value.pop();
int_type* t = get_vec(a, s1_val, exe_vectors, free_mem);
exe_type.push("NAME");
exe_value.push("");
exe_precision.push(0);
}
else
if (s1.compare("NAME") == 0 && s2.compare("STRING") == 0) {
s1_val = exe_value.top();
exe_value.pop();
s2_val = exe_value.top();
exe_value.pop();
int_type* t = get_vec(a, s1_val, exe_vectors, free_mem);
exe_type.push("NAME");
exe_value.push("");
exe_precision.push(0);
}
else
if (s2.compare("NAME") == 0 && s1.compare("STRING") == 0) {
s1_val = exe_value.top();
exe_value.pop();
s2_val = exe_value.top();
exe_value.pop();
int_type* t = get_vec(a, s2_val, exe_vectors, free_mem);
exe_type.push("NAME");
exe_value.push("");
exe_precision.push(0);
}
else
if (s1.compare("NUMBER") == 0 && s2.compare("NUMBER") == 0) {
n1 = exe_nums.top();
exe_nums.pop();
n2 = exe_nums.top();
exe_nums.pop();
auto p1 = exe_precision.top();
exe_precision.pop();
auto p2 = exe_precision.top();
exe_precision.pop();
auto pres = precision_func(p1, p2, ss);
exe_precision.push(pres);
if(p1)
n1 = n1*(unsigned int)pow(10,p1);
if(p2)
n2 = n2*(unsigned int)pow(10,p2);
if (ss.compare("ADD") == 0 )
res = n1+n2;
else
if (ss.compare("MUL") == 0 )
res = n1*n2;
else
if (ss.compare("DIV") == 0 )
res = n1/n2;
else
res = n1-n2;
thrust::device_ptr<int_type> p = thrust::device_malloc<int_type>(a->mRecCount);
thrust::sequence(p, p+(a->mRecCount),res,(int_type)0);
exe_type.push("NAME");
exe_value.push("");
exe_vectors.push(thrust::raw_pointer_cast(p));
}
else
if (s1.compare("NAME") == 0 && s2.compare("NUMBER") == 0) {
s1_val = exe_value.top();
exe_value.pop();
n1 = exe_nums.top();
exe_nums.pop();
auto p1 = exe_precision.top();
exe_precision.pop();
auto p2 = get_decimals(a, s1_val, exe_precision);
int_type* t = get_vec(a, s1_val, exe_vectors, free_mem);
auto pres = precision_func(p1, p2, ss);
exe_precision.push(pres);
exe_type.push("NAME");
exe_value.push("");
exe_vectors.push(a->op(t,n1,ss,1, p1, p2));
if(free_mem)
cudaFree(t);
}
else
if (s1.compare("NUMBER") == 0 && s2.compare("NAME") == 0) {
n1 = exe_nums.top();
exe_nums.pop();
s2_val = exe_value.top();
exe_value.pop();
auto p1 = exe_precision.top();
exe_precision.pop();
auto p2 = get_decimals(a, s2_val, exe_precision);
int_type* t = get_vec(a, s2_val, exe_vectors, free_mem);
auto pres = precision_func(p2, p1, ss);
exe_precision.push(pres);
exe_type.push("NAME");
exe_value.push("");
exe_vectors.push(a->op(t,n1,ss,0, p2, p1));
if(free_mem)
cudaFree(t);
}
else
if (s1.compare("NAME") == 0 && s2.compare("NAME") == 0) {
s1_val = exe_value.top();
exe_value.pop();
s2_val = exe_value.top();
exe_value.pop();
if (a->type[s1_val] == 0) {
int_type* t1 = get_vec(a, s1_val, exe_vectors, free_mem);
int_type* t = get_vec(a, s2_val, exe_vectors, free_mem1);
auto p1 = get_decimals(a, s1_val, exe_precision);
auto p2 = get_decimals(a, s2_val, exe_precision);
auto pres = precision_func(p1, p2, ss);
exe_precision.push(pres);
exe_type.push("NAME");
exe_value.push("");
exe_vectors.push(a->op(t,t1,ss,0,p2,p1));
if(free_mem)
cudaFree(t1);
if(free_mem1)
cudaFree(t);
}
}
}
else
if (ss.compare("CMP") == 0) {
int_type cmp_type = op_nums.front();
op_nums.pop();
s1 = exe_type.top();
exe_type.pop();
s2 = exe_type.top();
exe_type.pop();
if (s1.compare("NUMBER") == 0 && s2.compare("NUMBER") == 0) {
n1 = exe_nums.top();
exe_nums.pop();
n2 = exe_nums.top();
exe_nums.pop();
exe_type.push("NAME");
exe_value.push("");
auto p1 = exe_precision.top();
exe_precision.pop();
auto p2 = exe_precision.top();
exe_precision.pop();
auto pres = precision_func(p1, p2, ss);
exe_precision.push(pres);
if(p1)
n1 = n1*(unsigned int)pow(10,p1);
if(p2)
n2 = n2*(unsigned int)pow(10,p2);
bool_vectors.push(a->compare(n1,n2,cmp_type));
}
else
if ((s1.compare("STRING") == 0 && s2.compare("NAME") == 0) ||
(s1.compare("NAME") == 0 && s2.compare("STRING") == 0))
{
s1_val = exe_value.top();
exe_value.pop();
s2_val = exe_value.top();
exe_value.pop();
if (s1.compare("NAME") == 0 && s2.compare("STRING") == 0) {
s1.swap(s2);
s1_val.swap(s2_val);
};
void* d_res, *d_v;
if(cmp_type != 7)
cudaMalloc((void **) &d_res, a->mRecCount);
else
cudaMalloc((void **) &d_res, a->hostRecCount);
thrust::device_ptr<bool> dd_res((bool*)d_res);
cudaMalloc((void **) &d_v, 8);
thrust::device_ptr<unsigned int> dd_v((unsigned int*)d_v);
thrust::counting_iterator<unsigned int> begin(0);
if(s2_val.find(".") != string::npos) { //bitmap index
auto pos1 = s2_val.find_first_of(".");
auto pos2 = s2_val.find_last_of(".");
auto set = s2_val.substr(pos1+1, (pos2-pos1)-1);
auto col = s2_val.substr(pos2+1);
auto len = data_dict[set][col].col_length;
while(s1_val.length() < len)
s1_val = s1_val + '\0';
auto s1_hash = MurmurHash64A(&s1_val[0], len, hash_seed)/2;
if(a->idx_dictionary_int[s2_val].find(s1_hash) != a->idx_dictionary_int[s2_val].end()) {
dd_v[0] = a->idx_dictionary_int[s2_val][s1_hash];
dd_v[1] = (unsigned int)cmp_type;
cmp_functor_dict ff(idx_vals[s2_val], (bool*)d_res, (unsigned int*)d_v);
thrust::for_each(begin, begin + a->mRecCount, ff);
}
else {
cudaMemset(d_res,0,a->mRecCount);
}
}
else {
auto s = a->string_map[s2_val];
auto pos = s.find_first_of(".");
auto len = data_dict[s.substr(0, pos)][s.substr(pos+1)].col_length;
dd_v[0] = len;
dd_v[1] = (unsigned int)s1_val.length() + 1;
if(cmp_type != 7) {
thrust::device_vector<unsigned long long int> vv(1);
while(s1_val.length() < len) {
s1_val = s1_val + '\0';
};
vv[0] = MurmurHash64A(&s1_val[0], s1_val.length(), hash_seed)/2;
string f1 = a->load_file_name + "." + s2_val + "." + to_string(segment) + ".hash";
FILE* f = fopen(f1.c_str(), "rb" );
unsigned long long int* buff = new unsigned long long int[a->mRecCount];
unsigned int cnt;
fread(&cnt, 4, 1, f);
fread(buff, a->mRecCount*8, 1, f);
fclose(f);
thrust::device_vector<unsigned long long int> vals(a->mRecCount);
thrust::copy(buff, buff+a->mRecCount, vals.begin());
if(cmp_type == 4) //==
thrust::transform(vals.begin(), vals.end(), thrust::make_constant_iterator(vv[0]), dd_res, thrust::equal_to<unsigned long long int>());
else
if(cmp_type == 3) //!=
thrust::transform(vals.begin(), vals.end(), thrust::make_constant_iterator(vv[0]), dd_res, thrust::not_equal_to<unsigned long long int>());
delete [] buff;
}
else {
if(a->map_like.find(s2_val) == a->map_like.end()) {
void* d_str;
cudaMalloc((void **) &d_str, len);
cudaMemset(d_str,0,len);
cudaMemcpy( d_str, (void *) s1_val.c_str(), s1_val.length(), cudaMemcpyHostToDevice);
string f1 = a->load_file_name + "." + s2_val;
FILE* f = fopen(f1.c_str(), "rb" );
fseek(f, 0, SEEK_END);
long fileSize = ftell(f);
fseek(f, 0, SEEK_SET);
unsigned int pieces = 1;
if(fileSize > getFreeMem()/2)
pieces = fileSize /(getFreeMem()/2) + 1;
auto piece_sz = fileSize/pieces;
ldiv_t ldivresult = ldiv(fileSize/pieces, len);
if(ldivresult.rem != 0)
piece_sz = fileSize/pieces + (len - ldivresult.rem);
thrust::device_vector<char> dev(piece_sz);
char* buff = new char[piece_sz];
a->map_res[s2_val] = thrust::device_vector<unsigned int>();
for(auto i = 0; i < pieces; i++) {
if(i == pieces-1)
piece_sz = fileSize - piece_sz*i;
fread(buff, piece_sz, 1, f);
cudaMemcpy( thrust::raw_pointer_cast(dev.data()), (void*)buff, piece_sz, cudaMemcpyHostToDevice);
gpu_regex ff(thrust::raw_pointer_cast(dev.data()), (char*)d_str, (bool*)d_res, (unsigned int*)d_v);
thrust::for_each(begin, begin + piece_sz/len, ff);
auto cnt = thrust::count(dd_res, dd_res + piece_sz/len, 1);
auto offset = a->map_res[s2_val].size();
a->map_res[s2_val].resize(a->map_res[s2_val].size() + cnt);
thrust::copy_if(thrust::make_counting_iterator((unsigned int)(i*(piece_sz/len))), thrust::make_counting_iterator((unsigned int)((i+1)*(piece_sz/len))),
dd_res, a->map_res[s2_val].begin() + offset, thrust::identity<bool>());
};
fclose(f);
delete [] buff;
cudaFree(d_str);
thrust::sort(a->map_res[s2_val].begin(), a->map_res[s2_val].end());
a->map_like[s2_val] = 1;
};
// now lets calc the current segments's matches
cudaMemset(d_res, 0, a->hostRecCount);
binary_search(a->map_res[s2_val].begin(),a->map_res[s2_val].end(), a->d_columns_int[s2_val].begin(), a->d_columns_int[s2_val].end(), dd_res);
};
};
cudaFree(d_v);
exe_type.push("NAME");
bool_vectors.push((bool*)d_res);
}
else
if (s1.compare("NUMBER") == 0 && s2.compare("NAME") == 0) {
n1 = exe_nums.top();
exe_nums.pop();
s1_val = exe_value.top();
exe_value.pop();
if(s1_val.find(".") != string::npos) { //bitmap index
void* d_v, *d_res;
cudaMalloc((void **) &d_v, 8);
thrust::device_ptr<unsigned int> dd_v((unsigned int*)d_v);
cudaMalloc((void **) &d_res, a->mRecCount);
if(a->idx_dictionary_int[s1_val].find(n1) != a->idx_dictionary_int[s1_val].end()) {
dd_v[0] = a->idx_dictionary_int[s1_val][n1];
dd_v[1] = (unsigned int)cmp_type;
thrust::counting_iterator<unsigned int> begin(0);
cmp_functor_dict ff(idx_vals[s1_val], (bool*)d_res, (unsigned int*)d_v);
thrust::for_each(begin, begin + a->mRecCount, ff);
}
else {
cudaMemset(d_res,0,a->mRecCount);
};
exe_type.push("NAME");
bool_vectors.push((bool*)d_res);
cudaFree(d_v);
}
else {
int_type* t = get_vec(a, s1_val, exe_vectors, free_mem);
thrust::device_ptr<int_type> bp((int_type*)t);
auto p2 = exe_precision.top();
exe_precision.pop();
auto p1 = get_decimals(a, s1_val, exe_precision);
auto pres = std::max(p1, p2);
exe_precision.push(pres);
exe_type.push("NAME");
bool_vectors.push(a->compare(t,n1,cmp_type, pres-p1, pres-p2));
if(free_mem)
cudaFree(t);
};
}
else
if (s1.compare("NAME") == 0 && s2.compare("NUMBER") == 0) {
cmp_type = reverse_op(cmp_type);
n1 = exe_nums.top();
exe_nums.pop();
s2_val = exe_value.top();
exe_value.pop();
if(s2_val.find(".") != string::npos) { //bitmap index
void* d_v, *d_res;
cudaMalloc((void **) &d_v, 8);
thrust::device_ptr<unsigned int> dd_v((unsigned int*)d_v);
cudaMalloc((void **) &d_res, a->mRecCount);
if(a->idx_dictionary_int[s2_val].find(n1) != a->idx_dictionary_int[s2_val].end()) {
dd_v[0] = a->idx_dictionary_int[s2_val][n1];
dd_v[1] = (unsigned int)cmp_type;
thrust::counting_iterator<unsigned int> begin(0);
cmp_functor_dict ff(idx_vals[s2_val], (bool*)d_res, (unsigned int*)d_v);
thrust::for_each(begin, begin + a->mRecCount, ff);
}
else {
cudaMemset(d_res,0,a->mRecCount);
};
exe_type.push("NAME");
bool_vectors.push((bool*)d_res);
cudaFree(d_v);
}
else {
int_type* t = get_vec(a, s2_val, exe_vectors, free_mem);
auto p2 = exe_precision.top();
exe_precision.pop();
auto p1 = get_decimals(a, s2_val, exe_precision);
auto pres = std::max(p1, p2);
exe_precision.push(pres);
exe_type.push("NAME");
bool_vectors.push(a->compare(t,n1,cmp_type, p1, p2));
if(free_mem)
cudaFree(t);
};
}
else
if (s1.compare("NAME") == 0 && s2.compare("NAME") == 0) {
s1_val = exe_value.top();
exe_value.pop();
s2_val = exe_value.top();
exe_value.pop();
exe_type.push("NAME");
int_type* t = get_vec(a, s1_val, exe_vectors, free_mem);
int_type* t1 = get_vec(a, s2_val, exe_vectors, free_mem1);
auto p1 = get_decimals(a, s1_val, exe_precision);
auto p2 = get_decimals(a, s2_val, exe_precision);
auto pres = max(p1, p2);
exe_precision.push(pres);
bool_vectors.push(a->compare(t1,t,cmp_type, p2, p1));
if(free_mem)
cudaFree(t);
if(free_mem1)
cudaFree(t1);
}
}
else
if (ss.compare("AND") == 0) {
bool* s3 = bool_vectors.top();
bool_vectors.pop();
bool* s2 = bool_vectors.top();
bool_vectors.pop();
exe_type.push("NAME");
bool_vectors.push(a->logical_and(s2,s3));
}
else
if (ss.compare("OR") == 0) {
bool* s3 = bool_vectors.top();
bool_vectors.pop();
bool* s2 = bool_vectors.top();
bool_vectors.pop();
exe_type.push("NAME");
bool_vectors.push(a->logical_or(s2,s3));
}
else {
cout << "found nothing " << endl;
}
};
};
return bool_vectors.top();
}