6 files changed, 85 insertions, 60 deletions

diff --git a/packages/base/src/Internal/C/lapack-aux.c b/packages/base/src/Internal/C/lapack-aux.c
index 7da6f6a..1601bef 100644
--- a/packages/base/src/Internal/C/lapack-aux.c
+++ b/packages/base/src/Internal/C/lapack-aux.c
@@ -1290,29 +1290,25 @@ int multiplyQ(int ta, int tb, KQMAT(a),KQMAT(b),QMAT(r)) {
 }
 
 
-int multiplyI(KOIMAT(a), KOIMAT(b), OIMAT(r)) {
-    { TRAV(r,i,j) {
-        int k;
-        AT(r,i,j) = 0;
-        for (k=0;k<ac;k++) {
-            AT(r,i,j) += AT(a,i,k) * AT(b,k,j);
-        }
-      }
+#define MULT_IMP_VER(OP)        \
+    { TRAV(r,i,j) {             \
+        int k;                  \
+        AT(r,i,j) = 0;          \
+        for (k=0;k<ac;k++) {    \
+            OP                  \
+        }                       \
+      }                         \
     }
-    OK
-}
 
-int multiplyL(KOLMAT(a), KOLMAT(b), OLMAT(r)) {
-    { TRAV(r,i,j) {
-        int k;
-        AT(r,i,j) = 0;
-        for (k=0;k<ac;k++) {
-            AT(r,i,j) += AT(a,i,k) * AT(b,k,j);
-        }
-      }
-    }
-    OK
-}
+#define MULT_IMP {                                                                   \
+    if (m==1) {                                                                      \
+        MULT_IMP_VER( AT(r,i,j) += AT(a,i,k) * AT(b,k,j); )                          \
+    } else {                                                                         \
+        MULT_IMP_VER( AT(r,i,j) = (AT(r,i,j) + (AT(a,i,k) * AT(b,k,j)) % m) % m ; )  \
+    } OK }
+
+int multiplyI(int     m, KOIMAT(a), KOIMAT(b), OIMAT(r)) MULT_IMP
+int multiplyL(int32_t m, KOLMAT(a), KOLMAT(b), OLMAT(r)) MULT_IMP
 
 
 ////////////////// sparse matrix-product ///////////////////////////////////////
diff --git a/packages/base/src/Internal/C/vector-aux.c b/packages/base/src/Internal/C/vector-aux.c
index 70e46bc..580aa1c 100644
--- a/packages/base/src/Internal/C/vector-aux.c
+++ b/packages/base/src/Internal/C/vector-aux.c
@@ -58,20 +58,28 @@ int sumR(KDVEC(x),DVEC(r)) {
     OK
 }
 
-int sumI(KIVEC(x),IVEC(r)) {
+int sumI(int m, KIVEC(x),IVEC(r)) {
     REQUIRES(rn==1,BAD_SIZE);
     int i;
     int res = 0;
-    for (i = 0; i < xn; i++) res += xp[i];
+    if (m==1) {
+        for (i = 0; i < xn; i++) res += xp[i];
+    } else {
+        for (i = 0; i < xn; i++) res = (res + xp[i]) % m;
+    }
     rp[0] = res;
     OK
 }
 
-int sumL(KLVEC(x),LVEC(r)) {
+int sumL(int32_t m, KLVEC(x),LVEC(r)) {
     REQUIRES(rn==1,BAD_SIZE);
     int i;
     int res = 0;
-    for (i = 0; i < xn; i++) res += xp[i];
+    if (m==1) {
+        for (i = 0; i < xn; i++) res += xp[i];
+    } else {
+        for (i = 0; i < xn; i++) res = (res + xp[i]) % m;
+    }
     rp[0] = res;
     OK
 }
@@ -127,20 +135,28 @@ int prodR(KDVEC(x),DVEC(r)) {
     OK
 }
 
-int prodI(KIVEC(x),IVEC(r)) {
+int prodI(int m, KIVEC(x),IVEC(r)) {
     REQUIRES(rn==1,BAD_SIZE);
     int i;
     int res = 1;
-    for (i = 0; i < xn; i++) res *= xp[i];
+    if (m==1) {
+        for (i = 0; i < xn; i++) res *= xp[i];
+    } else {
+        for (i = 0; i < xn; i++) res = (res * xp[i]) % m;
+    }
     rp[0] = res;
     OK
 }
 
-int prodL(KLVEC(x),LVEC(r)) {
+int prodL(int32_t m, KLVEC(x),LVEC(r)) {
     REQUIRES(rn==1,BAD_SIZE);
     int i;
     int res = 1;
-    for (i = 0; i < xn; i++) res *= xp[i];
+    if (m==1) {
+        for (i = 0; i < xn; i++) res *= xp[i];
+    } else {
+        for (i = 0; i < xn; i++) res = (res * xp[i]) % m;
+    }
     rp[0] = res;
     OK
 }
diff --git a/packages/base/src/Internal/LAPACK.hs b/packages/base/src/Internal/LAPACK.hs
index 469b0d5..8df568d 100644
--- a/packages/base/src/Internal/LAPACK.hs
+++ b/packages/base/src/Internal/LAPACK.hs
@@ -36,8 +36,8 @@ foreign import ccall unsafe "multiplyR" dgemmc :: CInt -> CInt -> TMMM R
 foreign import ccall unsafe "multiplyC" zgemmc :: CInt -> CInt -> TMMM C
 foreign import ccall unsafe "multiplyF" sgemmc :: CInt -> CInt -> TMMM F
 foreign import ccall unsafe "multiplyQ" cgemmc :: CInt -> CInt -> TMMM Q
-foreign import ccall unsafe "multiplyI" c_multiplyI :: CInt ::> CInt ::> CInt ::> Ok
-foreign import ccall unsafe "multiplyL" c_multiplyL :: Z ::> Z ::> Z ::> Ok
+foreign import ccall unsafe "multiplyI" c_multiplyI :: I -> I ::> I ::> I ::> Ok
+foreign import ccall unsafe "multiplyL" c_multiplyL :: Z -> Z ::> Z ::> Z ::> Ok
 
 isT Matrix{order = ColumnMajor} = 0
 isT Matrix{order = RowMajor} = 1
@@ -68,20 +68,20 @@ multiplyF a b = multiplyAux sgemmc "sgemmc" a b
 multiplyQ :: Matrix (Complex Float) -> Matrix (Complex Float) -> Matrix (Complex Float)
 multiplyQ a b = multiplyAux cgemmc "cgemmc" a b
 
-multiplyI :: Matrix CInt -> Matrix CInt -> Matrix CInt
-multiplyI a b = unsafePerformIO $ do
+multiplyI :: I -> Matrix CInt -> Matrix CInt -> Matrix CInt
+multiplyI m a b = unsafePerformIO $ do
     when (cols a /= rows b) $ error $
         "inconsistent dimensions in matrix product "++ shSize a ++ " x " ++ shSize b
     s <- createMatrix ColumnMajor (rows a) (cols b)
-    app3 c_multiplyI omat a omat b omat s "c_multiplyI"
+    app3 (c_multiplyI m) omat a omat b omat s "c_multiplyI"
     return s
 
-multiplyL :: Matrix Z -> Matrix Z -> Matrix Z
-multiplyL a b = unsafePerformIO $ do
+multiplyL :: Z -> Matrix Z -> Matrix Z -> Matrix Z
+multiplyL m a b = unsafePerformIO $ do
     when (cols a /= rows b) $ error $
         "inconsistent dimensions in matrix product "++ shSize a ++ " x " ++ shSize b
     s <- createMatrix ColumnMajor (rows a) (cols b)
-    app3 c_multiplyL omat a omat b omat s "c_multiplyL"
+    app3 (c_multiplyL m) omat a omat b omat s "c_multiplyL"
     return s
 
 -----------------------------------------------------------------------------
diff --git a/packages/base/src/Internal/Modular.hs b/packages/base/src/Internal/Modular.hs
index 36ffb57..0274607 100644
--- a/packages/base/src/Internal/Modular.hs
+++ b/packages/base/src/Internal/Modular.hs
@@ -30,6 +30,8 @@ import Internal.Matrix hiding (mat,size)
 import Internal.Numeric
 import Internal.Element
 import Internal.Container
+import Internal.Vectorized (prodI,sumI)
+import Internal.LAPACK (multiplyI)
 import Internal.Util(Indexable(..),gaussElim)
 import GHC.TypeLits
 import Data.Proxy(Proxy)
@@ -145,8 +147,12 @@ instance forall m . KnownNat m => Container Vector (F m)
     maxIndex'     = maxIndex . f2i
     minElement'   = Mod . minElement . f2i
     maxElement'   = Mod . maxElement . f2i
-    sumElements'  = fromIntegral . sumElements . f2i  -- FIXME
-    prodElements' = fromIntegral . sumElements . f2i  -- FIXME
+    sumElements'  = fromIntegral . sumI m' . f2i
+      where
+        m' = fromIntegral . natVal $ (undefined :: Proxy m)
+    prodElements' = fromIntegral . prodI m' . f2i
+      where
+        m' = fromIntegral . natVal $ (undefined :: Proxy m)
     step'         = i2f . step . f2i
     find' = findV
     assoc' = assocV
@@ -170,14 +176,14 @@ instance Indexable (Vector (F m)) (F m)
 
 type instance RealOf (F n) = I
 
-
 instance KnownNat m => Product (F m) where
     norm2      = undefined
     absSum     = undefined
     norm1      = undefined
     normInf    = undefined
-    multiply   = lift2 multiply  -- FIXME
-
+    multiply   = lift2 (multiplyI m')
+      where
+        m' = fromIntegral . natVal $ (undefined :: Proxy m)
 
 instance KnownNat m => Numeric (F m)
 
@@ -236,6 +242,9 @@ test = (ok, info)
     ad = fromInt a :: Matrix Double
     bd = fromInt b :: Matrix Double
 
+    g = (3><3) (repeat (40000)) :: Matrix I
+    gm = fromInt g :: Matrix (F 100000)
+
     info = do
         print v
         print m
@@ -247,10 +256,17 @@ test = (ok, info)
 
         print $ am <> gaussElim am bm - bm
         print $ ad <> gaussElim ad bd - bd
+        
+        print g
+        print $ g <> g
+        print gm
+        print $ gm <> gm
 
     ok = and
       [ toInt (m #> v) == cmod 11 (toInt m #> toInt v )
       , am <> gaussElim am bm == bm
+      , prodElements (konst (9:: F 10) (12::Int)) == product (replicate 12 (9:: F 10))
+      , gm <> gm == konst 0 (3,3)
       ]
 
 
diff --git a/packages/base/src/Internal/Numeric.hs b/packages/base/src/Internal/Numeric.hs
index eb744d1..2ef96bf 100644
--- a/packages/base/src/Internal/Numeric.hs
+++ b/packages/base/src/Internal/Numeric.hs
@@ -113,8 +113,8 @@ instance Container Vector I
     maxIndex'     = emptyErrorV "maxIndex"   (fromIntegral . toScalarI MaxIdx)
     minElement'   = emptyErrorV "minElement" (toScalarI Min)
     maxElement'   = emptyErrorV "maxElement" (toScalarI Max)
-    sumElements'  = sumI
-    prodElements' = prodI
+    sumElements'  = sumI 1
+    prodElements' = prodI 1
     step' = stepI
     find' = findV
     assoc' = assocV
@@ -152,8 +152,8 @@ instance Container Vector Z
     maxIndex'     = emptyErrorV "maxIndex"   (fromIntegral . toScalarL MaxIdx)
     minElement'   = emptyErrorV "minElement" (toScalarL Min)
     maxElement'   = emptyErrorV "maxElement" (toScalarL Max)
-    sumElements'  = sumL
-    prodElements' = prodL
+    sumElements'  = sumL 1
+    prodElements' = prodL 1
     step' = stepL
     find' = findV
     assoc' = assocV
@@ -596,14 +596,14 @@ instance Product I where
     absSum     = emptyVal (sumElements . vectorMapI Abs)
     norm1      = absSum
     normInf    = emptyVal (maxElement . vectorMapI Abs)
-    multiply   = emptyMul multiplyI
+    multiply   = emptyMul (multiplyI 1)
 
 instance Product Z where
     norm2      = undefined
     absSum     = emptyVal (sumElements . vectorMapL Abs)
     norm1      = absSum
     normInf    = emptyVal (maxElement . vectorMapL Abs)
-    multiply   = emptyMul multiplyL
+    multiply   = emptyMul (multiplyL 1)
 
 
 emptyMul m a b
diff --git a/packages/base/src/Internal/Vectorized.hs b/packages/base/src/Internal/Vectorized.hs
index ff51494..5c89ac9 100644
--- a/packages/base/src/Internal/Vectorized.hs
+++ b/packages/base/src/Internal/Vectorized.hs
@@ -94,11 +94,9 @@ sumQ = sumg c_sumQ
 sumC :: Vector (Complex Double) -> Complex Double
 sumC = sumg c_sumC
 
--- | sum of elements
-sumI :: Vector CInt -> CInt
-sumI = sumg c_sumI
+sumI m = sumg (c_sumI m)
 
-sumL = sumg c_sumL
+sumL m = sumg (c_sumL m)
 
 sumg f x = unsafePerformIO $ do
     r <- createVector 1
@@ -111,8 +109,8 @@ foreign import ccall unsafe "sumF" c_sumF :: TVV Float
 foreign import ccall unsafe "sumR" c_sumR :: TVV Double
 foreign import ccall unsafe "sumQ" c_sumQ :: TVV (Complex Float)
 foreign import ccall unsafe "sumC" c_sumC :: TVV (Complex Double)
-foreign import ccall unsafe "sumI" c_sumI :: TVV CInt
-foreign import ccall unsafe "sumL" c_sumL :: TVV Z
+foreign import ccall unsafe "sumI" c_sumI :: I -> TVV I
+foreign import ccall unsafe "sumL" c_sumL :: Z -> TVV Z
 
 -- | product of elements
 prodF :: Vector Float -> Float
@@ -130,11 +128,10 @@ prodQ = prodg c_prodQ
 prodC :: Vector (Complex Double) -> Complex Double
 prodC = prodg c_prodC
 
--- | product of elements
-prodI :: Vector CInt -> CInt
-prodI = prodg c_prodI
 
-prodL = prodg c_prodL
+prodI = prodg . c_prodI
+
+prodL = prodg . c_prodL
 
 prodg f x = unsafePerformIO $ do
     r <- createVector 1
@@ -146,8 +143,8 @@ foreign import ccall unsafe "prodF" c_prodF :: TVV Float
 foreign import ccall unsafe "prodR" c_prodR :: TVV Double
 foreign import ccall unsafe "prodQ" c_prodQ :: TVV (Complex Float)
 foreign import ccall unsafe "prodC" c_prodC :: TVV (Complex Double)
-foreign import ccall unsafe "prodI" c_prodI :: TVV (CInt)
-foreign import ccall unsafe "prodL" c_prodL :: TVV Z
+foreign import ccall unsafe "prodI" c_prodI :: I -> TVV I
+foreign import ccall unsafe "prodL" c_prodL :: Z -> TVV Z
 
 ------------------------------------------------------------------