xref: /libCEED/tests/t200-elemrestriction-f.f90 (revision b502e64cbeabbc96703d2df7381e3a0625ff8762)
1!-----------------------------------------------------------------------
2      program test
3
4      include 'ceedf.h'
5
6      integer ceed,err
7      integer x,y
8      integer r
9      integer i
10      integer*8 offset
11
12      integer ne
13      parameter(ne=3)
14
15      integer*4 ind(2*ne)
16      real*8 a(ne+1)
17      real*8 yy(2*ne)
18      real*8 diff
19
20      character arg*32
21
22      call getarg(1,arg)
23      call ceedinit(trim(arg)//char(0),ceed,err)
24
25      call ceedvectorcreate(ceed,ne+1,x,err)
26
27      do i=1,ne+1
28        a(i)=10+i-1
29      enddo
30
31      call ceedvectorsetarray(x,ceed_mem_host,ceed_use_pointer,a,err)
32
33      do i=1,ne
34        ind(2*i-1)=i-1
35        ind(2*i  )=i
36      enddo
37
38      call ceedelemrestrictioncreate(ceed,ne,2,ne+1,1,ceed_mem_host,&
39     & ceed_use_pointer,ind,r,err)
40
41      call ceedvectorcreate(ceed,2*ne,y,err);
42      call ceedvectorsetvalue(y,0.d0,err);
43      call ceedelemrestrictionapply(r,ceed_notranspose,ceed_notranspose,x,y,&
44     & ceed_request_immediate,err)
45
46      call ceedvectorgetarrayread(y,ceed_mem_host,yy,offset,err)
47      do i=1,ne*2
48        diff=10+i/2-yy(i+offset)
49        if (abs(diff) > 1.0D-15) then
50          write(*,*) 'Error in restricted array y(',i,')=',yy(i+offset)
51        endif
52      enddo
53      call ceedvectorrestorearrayread(y,yy,offset,err)
54
55      call ceedvectordestroy(x,err)
56      call ceedvectordestroy(y,err)
57      call ceedelemrestrictiondestroy(r,err)
58      call ceeddestroy(ceed,err)
59
60      end
61!-----------------------------------------------------------------------
62