I64 mp_n;
I64 MPSum(I64 my_mp_cnt)
{//We could use the formula n*(n+1)/2
I64 lo=mp_n*Gs->num/my_mp_cnt,
hi=mp_n*(Gs->num+1)/my_mp_cnt,
res=0,i;
for (i=lo;i<hi;i++)
res+=i;
return res;
}
I64 Sum(I64 n,I64 my_mp_cnt)
{
CJob *tmpm[MP_PROCESSORS_NUM];
I64 res=0,i;
mp_n=n+1;
for (i=0;i<my_mp_cnt;i++)
tmpm[i]=JobQue(&MPSum,my_mp_cnt,i,0);
for (i=0;i<my_mp_cnt;i++)
res+=JobResGet(tmpm[i]);
return res;
}
#define SAMPLE_SIZE 100
F64 Test(I64 n,I64 my_mp_cnt)
{
I64 i,val=0;
F64 start,end;
start=tS;
for (i=0;i<SAMPLE_SIZE;i++)
val+=Sum(n,my_mp_cnt);
end=tS;
"Val:%,d\n",val/SAMPLE_SIZE;
"$RED$N:%12,d Time:%10.8f$FG$\n",n,(end-start)/SAMPLE_SIZE;
return end-start;
}
#define VAL_MIN 1000
#define TEST_MIN 3
#define TEST_MAX 7
#define TESTS_NUM (TEST_MAX-TEST_MIN+1)
#define PERCENT_MAX 200
U0 MPAdd()
{
I64 i,n,
h=Fs->pix_width,
v=Fs->pix_height;
F64 t1,t2,ress[TESTS_NUM];
CDC *dc=DCAlias;
for (i=0,n=VAL_MIN;i<TESTS_NUM;i++,n*=10) {
t1=Test(n,1);
t2=Test(n,mp_cnt);
ress[i]=t2*100.0/t1;
"$GREEN$%8.4f%%$FG$\n\n",ress[i];
}
PressAKey;
DocClear;
dc->color=BLUE;
for (i=PERCENT_MAX/10;i<PERCENT_MAX;i+=PERCENT_MAX/10) {
GrPrint(dc,0,v-ToF64(i)/PERCENT_MAX*v-FONT_HEIGHT,"%3d%%",i);
GrLine(dc,0,v-ToF64(i)/PERCENT_MAX*v,h,v-ToF64(i)/PERCENT_MAX*v);
}
for (i=0;i<TESTS_NUM-1;i++) {
dc->color=RED;
dc->thick=2;
GrLine3(dc,i*h/(TESTS_NUM-1), v-ress[i ]/PERCENT_MAX*v,0,
(i+1)*h/(TESTS_NUM-1),v-ress[i+1]/PERCENT_MAX*v,0);
dc->color=GREEN;
GrPrint(dc,i*h/(TESTS_NUM-1),v-FONT_HEIGHT,"10e%d",i+TEST_MIN);
GrLine(dc,i*h/(TESTS_NUM-1),0,i*h/(TESTS_NUM-1),v);
}
PressAKey;
DCFill;
DCDel(dc);
}
MPAdd;