Fix IDX2IJK and IJK2IDX for LPK.

util/psb_partidx_mod.F90

@@ -257,10 +257,17 @@ contains
     ! j = mod(idx_/nz,ny) + base_
     ! i = mod(idx_/(nx*ny),nx) + base_
     !
-    do i=size(dims),1,-1
-      coords(i) = mod(idx_,dims(i)) + base_
-      idx_ = idx_ / dims(i)
-    end do
+    if (col_major) then 
+      do i=1,size(dims)
+        coords(i) = mod(idx_,dims(i)) + base_
+        idx_ = idx_ / dims(i)
+      end do
+    else
+      do i=size(dims),1,-1
+        coords(i) = mod(idx_,dims(i)) + base_
+        idx_ = idx_ / dims(i)
+      end do
+    end if
 
   end subroutine lidx2ijkv
 
@@ -341,10 +348,17 @@ contains
     ! j = mod(idx_/nz,ny) + base_
     ! i = mod(idx_/(nx*ny),nx) + base_
     !
-    do i=size(dims),1,-1
-      coords(i) = mod(idx_,dims(i)) + base_
-      idx_ = idx_ / dims(i)
-    end do
+    if (col_major) then 
+      do i=1,size(dims)
+        coords(i) = mod(idx_,dims(i)) + base_
+        idx_ = idx_ / dims(i)
+      end do
+    else
+      do i=size(dims),1,-1
+        coords(i) = mod(idx_,dims(i)) + base_
+        idx_ = idx_ / dims(i)
+      end do
+    end if
 
   end subroutine lidx2lijkv
   !
@@ -447,11 +461,19 @@ contains
       return
     end if
 
-    idx = coords(1) - base_
-    do i=2, sz
-      idx = (idx * dims(i)) + coords(i) - base_
-    end do
-    idx = idx + base_
+    if (col_major) then 
+      idx = coords(sz) - base_
+      do i=sz-1,1,-1
+        idx = (idx * dims(i)) + coords(i) - base_
+      end do
+      idx = idx + base_
+    else
+      idx = coords(1) - base_
+      do i=2,sz
+        idx = (idx * dims(i)) + coords(i) - base_
+      end do
+      idx = idx + base_
+    end if
     
   end subroutine ijk2lidxv
   !
@@ -509,11 +531,19 @@ contains
       return
     end if
 
-    idx = coords(1) - base_
-    do i=2, sz
-      idx = (idx * dims(i)) + coords(i) - base_
-    end do
-    idx = idx + base_
+    if (col_major) then 
+      idx = coords(sz) - base_
+      do i=sz-1,1,-1
+        idx = (idx * dims(i)) + coords(i) - base_
+      end do
+      idx = idx + base_
+    else
+      idx = coords(1) - base_
+      do i=2,sz
+        idx = (idx * dims(i)) + coords(i) - base_
+      end do
+      idx = idx + base_
+    end if
     
   end subroutine lijk2lidxv
   !