Change naming scheme of architecture files

Add support for AVX (next-generation SSE)
Add support for Double Hummer (Blue Gene/P)


git-svn-id: https://svn.cct.lsu.edu/repos/numrel/LSUThorns/Vectors/trunk@7 105869f7-3296-0410-a4ea-f4349344b45a

1 files changed, 108 insertions, 0 deletions

diff --git a/src/vectors-8-DoubleHummer.h b/src/vectors-8-DoubleHummer.h
new file mode 100644
index 0000000..9311f62
--- /dev/null
+++ b/src/vectors-8-DoubleHummer.h
@@ -0,0 +1,108 @@
+// Vectorise using IBM's Blue Gene/P Double Hummer (Power)
+
+// Use the type double _Complex directly, without introducing a wrapper class
+// Use macros instead of inline functions
+
+
+
+#include <builtins.h>
+
+
+
+// Vector type corresponding to CCTK_REAL
+#define CCTK_REAL8_VEC double _Complex
+
+// Number of vector elements in a CCTK_REAL_VEC
+#define CCTK_REAL8_VEC_SIZE 2
+
+
+
+// Create vectors, extract vector elements
+
+#define vec8_set1(a)  (__cmplx(a,a))
+#define vec8_set(a,b) (__cmplx(a,b))
+
+#define vec8_elt0(x) (__creal(x))
+#define vec8_elt1(x) (__cimag(x))
+#define vec8_elt(x,d)                           \
+({                                              \
+  CCTK_REAL8_VEC const xelt=(x);                \
+  CCTK_REAL8 aelt;                              \
+  switch (d) {                                  \
+  case 0: aelt=vec8_elt0(xelt); break;          \
+  case 1: aelt=vec8_elt1(xelt); break;          \
+  }                                             \
+  aelt;                                         \
+})
+
+
+
+// Load and store vectors
+
+// Load a vector from memory (aligned and unaligned); this loads from
+// a reference to a scalar
+#define vec8_load(p)  (__lfpd((double *)&(p)))
+#define vec8_loadu(p) (__lfpd((double *)&(p))) // this may not work
+
+// Load a vector from memory that may or may not be aligned, as
+// decided by the offset and the vector size
+#define vec8_loadu_maybe(off,p)             (vec8_loadu(p))
+#define vec8_loadu_maybe3(off1,off2,off3,p) (vec8_loadu(p))
+
+// Store a vector to memory (aligned and non-temporal); this stores to
+// a reference to a scalar
+#define vec8_store(p,x)     (__stfpd(&(p),x))
+#define vec8_storeu(p,x)    (__stfpd(&(p),x)) // this may not work
+#define vec8_store_nta(p,x) (__stfpd(&(p),x)) // this doesn't avoid the cache
+
+// Store a lower or higher partial vector (aligned and non-temporal);
+// the non-temporal hint is probably ignored
+#define vec8_store_nta_partial_lo(p,x,n) ((&(p))[0]=vec8_elt0(x))
+#define vec8_store_nta_partial_hi(p,x,n) ((&(p))[1]=vec8_elt1(x))
+
+
+
+// Functions and operators
+
+// Operators
+#define k8pos(x) (x)
+#define k8neg(x) (__fpneg(x))
+
+#define k8add(x,y) (__fpadd(x,y))
+#define k8sub(x,y) (__fpsub(x,y))
+#define k8mul(x,y) (__fpmul(x,y))
+#define k8div(x,y) (__fpmul(x,__fpre(y)))
+
+// Fused multiply-add, defined as [+-]x*y[+-]z
+#define k8madd(x,y,z)  (__fpmadd(z,x,y))
+#define k8msub(x,y,z)  (__fpmsub(z,x,y))
+#define k8nmadd(x,y,z) (__fpnmadd(z,x,y))
+#define k8nmsub(x,y,z) (__fpnmsub(z,x,y))
+
+// Cheap functions
+#define k8fabs(x)   (__fpabs(x))
+#define k8fmax(x,y) (__fpsel(__fpsub(y,x),x,y))
+#define k8fmin(x,y) (__fpsel(__fpsub(x,y),x,y))
+#define k8fnabs(x)  (__fpnabs(x))
+
+#define k8exp(x)                                        \
+({                                                      \
+  CCTK_REAL8_VEC const xexp=(x);                        \
+  vec8_set(exp(vec8_elt0(xexp)), exp(vec8_elt1(xexp))); \
+})
+#define k8log(x)                                        \
+({                                                      \
+  CCTK_REAL8_VEC const xlog=(x);                        \
+  vec8_set(log(vec8_elt0(xlog)), log(vec8_elt1(xlog))); \
+})
+#define k8pow(x,a)                                                      \
+({                                                                      \
+  CCTK_REAL8_VEC const xpow=(x);                                        \
+  CCTK_REAL8 const apow=(a);                                            \
+  vec8_set(pow(vec8_elt0(xpow),apow), pow(vec8_elt1(xpow),apow));       \
+})
+#define k8sqrt(x)                                               \
+({                                                              \
+  CCTK_REAL8_VEC const xsqrt=(x);                               \
+  vec8_set(sqrt(vec8_elt0(xsqrt)), sqrt(vec8_elt1(xsqrt)));     \
+})