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2014 Jan 16
3
[LLVMdev] Loop unrolling opportunity in SPEC's libquantum with profile info
...ruct quantum_matrix_struct quantum_matrix; struct quantum_reg_node_struct { COMPLEX_FLOAT amplitude; /* alpha_j */ MAX_UNSIGNED state; /* j */ }; typedef struct quantum_reg_node_struct quantum_reg_node; /* The quantum register */ struct quantum_reg_struct { int width; /* number of qubits in the qureg */ int size; /* number of non-zero vectors */ int hashw; /* width of the hash array */ quantum_reg_node *node; int *hash; }; If you do the trick of writing to a separate array, then the loop can be vectorized. Diego.
1999 Mar 27
2
migration win95 -> win98
...e there any problems using samba with Win98 (compared to Win95 which works fine)? Thanks in advance for any advice, Andreas --------------------------------------------------------------------- Andreas K. Huettel Andreas.Huettel@Extern.LRZ-Muenchen.DE 81627 Muenchen huettel@qubit.org Germany http://www.lrz.de/~huettel/ --------------------------------------------------------------------- ===================================================================== News Release January 4, 1999 Redmond, Washington Bill Gates, Chairman and CEO of Microsoft Cor...
2007 May 31
0
[LLVMdev] Renaming
Without wishing to fan the flames, this struck me as interesting. -Gabe Qubit% diff -u Name.html.orig Name.html --- Name.html.orig 2007-05-30 23:22:11.000000000 -0500 +++ Name.html 2007-05-30 23:29:56.000000000 -0500 @@ -365,7 +365,7 @@ the weapons of the Gods</td></tr> <tr><th>Lemnos</th><td>Greek mythology: the islan...
2014 Jan 16
3
[LLVMdev] Loop unrolling opportunity in SPEC's libquantum with profile info
On Wed, Jan 15, 2014 at 5:30 PM, Nadav Rotem <nrotem at apple.com> wrote: > Was the vectorizer successful in unrolling the loop in quantum_sigma_x? I > wonder if 'size’ is typically high or low. No. The vectorizer stated that it wasn't going to bother with the loop because it wasn't profitable. Specifically: LV: Checking a loop in "quantum_sigma_x" LV: Found a
1998 Sep 21
15
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