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[ 4 / 4 ] Application profile is long enough (799.95 s)
To have good quality measurements, it is advised that the application profiling time is greater than 10 seconds.
[ 3 / 3 ] Optimization level option is correctly used
[ 2.99 / 3 ] Most of time spent in analyzed modules comes from functions compiled with -g and -fno-omit-frame-pointer
-g option gives access to debugging informations, such are source locations. -fno-omit-frame-pointer improve the accuracy of callchains found during the application profiling.
[ 2.99 / 3 ] Architecture specific option -march=skylake-avx512 is used
[ 2 / 2 ] Application is correctly profiled ("Others" category represents 0.00 % of the execution time)
To have a representative profiling, it is advised that the category "Others" represents less than 20% of the execution time in order to analyze as much as possible of the user code
[ 4 / 4 ] Enough time of the experiment time spent in analyzed loops (90.82%)
If the time spent in analyzed loops is less than 30%, standard loop optimizations will have a limited impact on application performances.
[ 4 / 4 ] Loop profile is not flat
At least one loop coverage is greater than 4% (35.59%), representing an hotspot for the application
[ 4 / 4 ] Enough time of the experiment time spent in analyzed innermost loops (74.24%)
If the time spent in analyzed innermost loops is less than 15%, standard innermost loop optimizations such as vectorisation will have a limited impact on application performances.
[ 3 / 3 ] Less than 10% (0.00%) is spend in BLAS1 operations
It could be more efficient to inline by hand BLAS1 operations
[ 3 / 3 ] Cumulative Outermost/In between loops coverage (16.58%) lower than cumulative innermost loop coverage (74.24%)
Having cumulative Outermost/In between loops coverage greater than cumulative innermost loop coverage will make loop optimization more complex
[ 2 / 2 ] Less than 10% (0.97%) is spend in Libm/SVML (special functions)
[ 2 / 2 ] Less than 10% (0.00%) is spend in BLAS2 operations
BLAS2 calls usually could make a poor cache usage and could benefit from inlining.
| Loop ID | Analysis | Penalty Score |
|---|---|---|
| ►Loop 3602 - libgromacs_mpi.so.9.0.0 | Execution Time: 35 % - Vectorization Ratio: 94.66 % - Vector Length Use: 88.17 % | |
| ►Loop Computation Issues | 256 | |
| ► | [SA] Presence of expensive FP instructions - Perform hoisting, change algorithm, use SVML or proper numerical library or perform value profiling (count the number of distinct input values). There are 64 issues (= instructions) costing 4 points each. | 256 |
| ○ | Number of RCP instructions: 32 Number of RSQRT instructions: 32 | |
| ►Data Access Issues | 37 | |
| ○ | [SA] Presence of constant non unit stride data access - Use array restructuring, perform loop interchange or use gather instructions to lower a bit the cost. There are 4 issues ( = data accesses) costing 2 point each. | 8 |
| ○ | [SA] Presence of indirect accesses - Use array restructuring or gather instructions to lower the cost. There are 3 issues ( = indirect data accesses) costing 4 point each. | 12 |
| ► | [SA] Presence of special instructions executing on a single port (SHUFFLE/PERM, BROADCAST) - Simplify data access and try to get stride 1 access. There are 15 issues (= instructions) costing 1 point each. | 15 |
| ○ | Number of ZMM SHUFFLE/PERM instructions: 3 Number of ZMM BROADCAST instructions: 12 | |
| ○ | [SA] More than 20% of the loads are accessing the stack - Perform loop splitting to decrease pressure on registers. This issue costs 2 points. | 2 |
| ►Vectorization Roadblocks | 20 | |
| ○ | [SA] Presence of constant non unit stride data access - Use array restructuring, perform loop interchange or use gather instructions to lower a bit the cost. There are 4 issues ( = data accesses) costing 2 point each. | 8 |
| ○ | [SA] Presence of indirect accesses - Use array restructuring or gather instructions to lower the cost. There are 3 issues ( = indirect data accesses) costing 4 point each. | 12 |
| ►Inefficient Vectorization | 17 | |
| ► | [SA] Presence of special instructions executing on a single port (SHUFFLE/PERM, BROADCAST) - Simplify data access and try to get stride 1 access. There are 15 issues (= instructions) costing 1 point each. | 15 |
| ○ | Number of ZMM SHUFFLE/PERM instructions: 3 Number of ZMM BROADCAST instructions: 12 | |
| ○ | [SA] Inefficient vectorization: use of masked instructions - Simplify control structure. The issue costs 2 points. | 2 |
| ►Loop 3606 - libgromacs_mpi.so.9.0.0 | Execution Time: 13 % - Vectorization Ratio: 94.96 % - Vector Length Use: 88.85 % | |
| ►Loop Computation Issues | 256 | |
| ► | [SA] Presence of expensive FP instructions - Perform hoisting, change algorithm, use SVML or proper numerical library or perform value profiling (count the number of distinct input values). There are 64 issues (= instructions) costing 4 points each. | 256 |
| ○ | Number of RCP instructions: 32 Number of RSQRT instructions: 32 | |
| ►Data Access Issues | 37 | |
| ○ | [SA] Presence of constant non unit stride data access - Use array restructuring, perform loop interchange or use gather instructions to lower a bit the cost. There are 4 issues ( = data accesses) costing 2 point each. | 8 |
| ○ | [SA] Presence of indirect accesses - Use array restructuring or gather instructions to lower the cost. There are 3 issues ( = indirect data accesses) costing 4 point each. | 12 |
| ► | [SA] Presence of special instructions executing on a single port (SHUFFLE/PERM, BROADCAST) - Simplify data access and try to get stride 1 access. There are 15 issues (= instructions) costing 1 point each. | 15 |
| ○ | Number of ZMM SHUFFLE/PERM instructions: 3 Number of ZMM BROADCAST instructions: 12 | |
| ○ | [SA] More than 20% of the loads are accessing the stack - Perform loop splitting to decrease pressure on registers. This issue costs 2 points. | 2 |
| ►Vectorization Roadblocks | 20 | |
| ○ | [SA] Presence of constant non unit stride data access - Use array restructuring, perform loop interchange or use gather instructions to lower a bit the cost. There are 4 issues ( = data accesses) costing 2 point each. | 8 |
| ○ | [SA] Presence of indirect accesses - Use array restructuring or gather instructions to lower the cost. There are 3 issues ( = indirect data accesses) costing 4 point each. | 12 |
| ►Inefficient Vectorization | 17 | |
| ► | [SA] Presence of special instructions executing on a single port (SHUFFLE/PERM, BROADCAST) - Simplify data access and try to get stride 1 access. There are 15 issues (= instructions) costing 1 point each. | 15 |
| ○ | Number of ZMM SHUFFLE/PERM instructions: 3 Number of ZMM BROADCAST instructions: 12 | |
| ○ | [SA] Inefficient vectorization: use of masked instructions - Simplify control structure. The issue costs 2 points. | 2 |
| ►Loop 3609 - libgromacs_mpi.so.9.0.0 | Execution Time: 6 % - Vectorization Ratio: 93.33 % - Vector Length Use: 89.17 % | |
| ►Loop Computation Issues | 384 | |
| ► | [SA] Presence of expensive FP instructions - Perform hoisting, change algorithm, use SVML or proper numerical library or perform value profiling (count the number of distinct input values). There are 96 issues (= instructions) costing 4 points each. | 384 |
| ○ | Number of RCP instructions: 64 Number of RSQRT instructions: 32 | |
| ►Data Access Issues | 43 | |
| ○ | [SA] Presence of constant non unit stride data access - Use array restructuring, perform loop interchange or use gather instructions to lower a bit the cost. There are 4 issues ( = data accesses) costing 2 point each. | 8 |
| ○ | [SA] Presence of indirect accesses - Use array restructuring or gather instructions to lower the cost. There are 3 issues ( = indirect data accesses) costing 4 point each. | 12 |
| ► | [SA] Presence of special instructions executing on a single port (SHUFFLE/PERM, BROADCAST) - Simplify data access and try to get stride 1 access. There are 21 issues (= instructions) costing 1 point each. | 21 |
| ○ | Number of ZMM SHUFFLE/PERM instructions: 3 Number of ZMM BROADCAST instructions: 18 | |
| ○ | [SA] More than 20% of the loads are accessing the stack - Perform loop splitting to decrease pressure on registers. This issue costs 2 points. | 2 |
| ►Vectorization Roadblocks | 20 | |
| ○ | [SA] Presence of constant non unit stride data access - Use array restructuring, perform loop interchange or use gather instructions to lower a bit the cost. There are 4 issues ( = data accesses) costing 2 point each. | 8 |
| ○ | [SA] Presence of indirect accesses - Use array restructuring or gather instructions to lower the cost. There are 3 issues ( = indirect data accesses) costing 4 point each. | 12 |
| ►Inefficient Vectorization | 23 | |
| ► | [SA] Presence of special instructions executing on a single port (SHUFFLE/PERM, BROADCAST) - Simplify data access and try to get stride 1 access. There are 21 issues (= instructions) costing 1 point each. | 21 |
| ○ | Number of ZMM SHUFFLE/PERM instructions: 3 Number of ZMM BROADCAST instructions: 18 | |
| ○ | [SA] Inefficient vectorization: use of masked instructions - Simplify control structure. The issue costs 2 points. | 2 |
| ►Loop 18915 - libgromacs_mpi.so.9.0.0 | Execution Time: 5 % - Vectorization Ratio: 57.14 % - Vector Length Use: 45.46 % | |
| ►Loop Computation Issues | 2 | |
| ○ | [SA] Presence of a large number of scalar integer instructions - Simplify loop structure, perform loop splitting or perform unroll and jam. This issue costs 2 points. | 2 |
| ►Control Flow Issues | 84 | |
| ○ | [SA] Too many paths (78 paths) - Simplify control structure. There are 78 issues ( = paths) costing 1 point each with a malus of 4 points. | 82 |
| ○ | [SA] Non innermost loop (Outermost) - Collapse loop with innermost ones. This issue costs 2 points. | 2 |
| ►Data Access Issues | 49 | |
| ► | [SA] Presence of expensive instructions (GATHER/SCATTER) - Use array restructuring. There are 4 issues (= instructions) costing 4 points each. | 16 |
| ○ | Number of ZMM GATHER/SCATTER instructions: 4 | |
| ► | [SA] Presence of special instructions executing on a single port (COMPRESS/EXPAND, BLEND/MERGE, SHUFFLE/PERM, BROADCAST) - Simplify data access and try to get stride 1 access. There are 31 issues (= instructions) costing 1 point each. | 31 |
| ○ | Number of ZMM COMPRESS/EXPAND instructions: 2 Number of XMM BLEND/MERGE instructions: 1 Number of XMM SHUFFLE/PERM instructions: 6 Number of ZMM SHUFFLE/PERM instructions: 14 Number of XMM BROADCAST instructions: 1 Number of YMM BROADCAST instructions: 1 Number of ZMM BROADCAST instructions: 6 | |
| ○ | [SA] More than 20% of the loads are accessing the stack - Perform loop splitting to decrease pressure on registers. This issue costs 2 points. | 2 |
| ►Vectorization Roadblocks | 84 | |
| ○ | [SA] Too many paths (78 paths) - Simplify control structure. There are 78 issues ( = paths) costing 1 point each with a malus of 4 points. | 82 |
| ○ | [SA] Non innermost loop (Outermost) - Collapse loop with innermost ones. This issue costs 2 points. | 2 |
| ►Inefficient Vectorization | 49 | |
| ○ | [SA] Presence of expensive instructions (GATHER/SCATTER) - Use array restructuring. There are 4 issues (= instructions) costing 4 points each. | 16 |
| ► | [SA] Presence of special instructions executing on a single port (COMPRESS/EXPAND, BLEND/MERGE, SHUFFLE/PERM, BROADCAST) - Simplify data access and try to get stride 1 access. There are 31 issues (= instructions) costing 1 point each. | 31 |
| ○ | Number of ZMM COMPRESS/EXPAND instructions: 2 Number of XMM BLEND/MERGE instructions: 1 Number of XMM SHUFFLE/PERM instructions: 6 Number of ZMM SHUFFLE/PERM instructions: 14 Number of XMM BROADCAST instructions: 1 Number of YMM BROADCAST instructions: 1 Number of ZMM BROADCAST instructions: 6 | |
| ○ | [SA] Inefficient vectorization: use of masked instructions - Simplify control structure. The issue costs 2 points. | 2 |
| ►Loop 19123 - libgromacs_mpi.so.9.0.0 | Execution Time: 2 % - Vectorization Ratio: 62.02 % - Vector Length Use: 19.86 % | |
| ►Loop Computation Issues | 2 | |
| ○ | [SA] Presence of a large number of scalar integer instructions - Simplify loop structure, perform loop splitting or perform unroll and jam. This issue costs 2 points. | 2 |
| ►Control Flow Issues | 321 | |
| ○ | [SA] Too many paths (315 paths) - Simplify control structure. There are 315 issues ( = paths) costing 1 point each with a malus of 4 points. | 319 |
| ○ | [SA] Non innermost loop (InBetween) - Collapse loop with innermost ones. This issue costs 2 points. | 2 |
| ►Data Access Issues | 16 | |
| ► | [SA] Presence of special instructions executing on a single port (BROADCAST) - Simplify data access and try to get stride 1 access. There are 14 issues (= instructions) costing 1 point each. | 14 |
| ○ | Number of XMM BROADCAST instructions: 14 | |
| ○ | [SA] More than 20% of the loads are accessing the stack - Perform loop splitting to decrease pressure on registers. This issue costs 2 points. | 2 |
| ►Vectorization Roadblocks | 321 | |
| ○ | [SA] Too many paths (315 paths) - Simplify control structure. There are 315 issues ( = paths) costing 1 point each with a malus of 4 points. | 319 |
| ○ | [SA] Non innermost loop (InBetween) - Collapse loop with innermost ones. This issue costs 2 points. | 2 |
| ►Inefficient Vectorization | 16 | |
| ► | [SA] Presence of special instructions executing on a single port (BROADCAST) - Simplify data access and try to get stride 1 access. There are 14 issues (= instructions) costing 1 point each. | 14 |
| ○ | Number of XMM BROADCAST instructions: 14 | |
| ○ | [SA] Inefficient vectorization: use of masked instructions - Simplify control structure. The issue costs 2 points. | 2 |
| ►Loop 3613 - libgromacs_mpi.so.9.0.0 | Execution Time: 2 % - Vectorization Ratio: 92.99 % - Vector Length Use: 89.25 % | |
| ►Loop Computation Issues | 384 | |
| ► | [SA] Presence of expensive FP instructions - Perform hoisting, change algorithm, use SVML or proper numerical library or perform value profiling (count the number of distinct input values). There are 96 issues (= instructions) costing 4 points each. | 384 |
| ○ | Number of RCP instructions: 64 Number of RSQRT instructions: 32 | |
| ►Data Access Issues | 45 | |
| ○ | [SA] Presence of constant non unit stride data access - Use array restructuring, perform loop interchange or use gather instructions to lower a bit the cost. There are 4 issues ( = data accesses) costing 2 point each. | 8 |
| ○ | [SA] Presence of indirect accesses - Use array restructuring or gather instructions to lower the cost. There are 3 issues ( = indirect data accesses) costing 4 point each. | 12 |
| ► | [SA] Presence of special instructions executing on a single port (SHUFFLE/PERM, BROADCAST) - Simplify data access and try to get stride 1 access. There are 23 issues (= instructions) costing 1 point each. | 23 |
| ○ | Number of ZMM SHUFFLE/PERM instructions: 3 Number of ZMM BROADCAST instructions: 20 | |
| ○ | [SA] More than 20% of the loads are accessing the stack - Perform loop splitting to decrease pressure on registers. This issue costs 2 points. | 2 |
| ►Vectorization Roadblocks | 20 | |
| ○ | [SA] Presence of constant non unit stride data access - Use array restructuring, perform loop interchange or use gather instructions to lower a bit the cost. There are 4 issues ( = data accesses) costing 2 point each. | 8 |
| ○ | [SA] Presence of indirect accesses - Use array restructuring or gather instructions to lower the cost. There are 3 issues ( = indirect data accesses) costing 4 point each. | 12 |
| ►Inefficient Vectorization | 25 | |
| ► | [SA] Presence of special instructions executing on a single port (SHUFFLE/PERM, BROADCAST) - Simplify data access and try to get stride 1 access. There are 23 issues (= instructions) costing 1 point each. | 23 |
| ○ | Number of ZMM SHUFFLE/PERM instructions: 3 Number of ZMM BROADCAST instructions: 20 | |
| ○ | [SA] Inefficient vectorization: use of masked instructions - Simplify control structure. The issue costs 2 points. | 2 |
| ►Loop 5329 - libgromacs_mpi.so.9.0.0 | Execution Time: 2 % - Vectorization Ratio: 87.21 % - Vector Length Use: 80.95 % | |
| ►Control Flow Issues | 4 | |
| ○ | [SA] Several paths (4 paths) - Simplify control structure or force the compiler to use masked instructions. There are 4 issues ( = paths) costing 1 point each. | 4 |
| ►Data Access Issues | 16 | |
| ○ | [SA] Presence of constant non unit stride data access - Use array restructuring, perform loop interchange or use gather instructions to lower a bit the cost. There are 1 issues ( = data accesses) costing 2 point each. | 2 |
| ○ | [SA] Presence of indirect accesses - Use array restructuring or gather instructions to lower the cost. There are 2 issues ( = indirect data accesses) costing 4 point each. | 8 |
| ► | [SA] Presence of special instructions executing on a single port (BROADCAST) - Simplify data access and try to get stride 1 access. There are 6 issues (= instructions) costing 1 point each. | 6 |
| ○ | Number of ZMM BROADCAST instructions: 6 | |
| ►Vectorization Roadblocks | 14 | |
| ○ | [SA] Several paths (4 paths) - Simplify control structure or force the compiler to use masked instructions. There are 4 issues ( = paths) costing 1 point each. | 4 |
| ○ | [SA] Presence of constant non unit stride data access - Use array restructuring, perform loop interchange or use gather instructions to lower a bit the cost. There are 1 issues ( = data accesses) costing 2 point each. | 2 |
| ○ | [SA] Presence of indirect accesses - Use array restructuring or gather instructions to lower the cost. There are 2 issues ( = indirect data accesses) costing 4 point each. | 8 |
| ►Inefficient Vectorization | 6 | |
| ► | [SA] Presence of special instructions executing on a single port (BROADCAST) - Simplify data access and try to get stride 1 access. There are 6 issues (= instructions) costing 1 point each. | 6 |
| ○ | Number of ZMM BROADCAST instructions: 6 | |
| ►Loop 3603 - libgromacs_mpi.so.9.0.0 | Execution Time: 1 % - Vectorization Ratio: 89.39 % - Vector Length Use: 83.49 % | |
| ►Loop Computation Issues | 256 | |
| ► | [SA] Presence of expensive FP instructions - Perform hoisting, change algorithm, use SVML or proper numerical library or perform value profiling (count the number of distinct input values). There are 64 issues (= instructions) costing 4 points each. | 256 |
| ○ | Number of RCP instructions: 32 Number of RSQRT instructions: 32 | |
| ►Control Flow Issues | 3 | |
| ○ | [SA] Several paths (3 paths) - Simplify control structure or force the compiler to use masked instructions. There are 3 issues ( = paths) costing 1 point each. | 3 |
| ►Data Access Issues | 36 | |
| ○ | [SA] Presence of constant non unit stride data access - Use array restructuring, perform loop interchange or use gather instructions to lower a bit the cost. There are 5 issues ( = data accesses) costing 2 point each. | 10 |
| ○ | [SA] Presence of indirect accesses - Use array restructuring or gather instructions to lower the cost. There are 1 issues ( = indirect data accesses) costing 4 point each. | 4 |
| ► | [SA] Presence of special instructions executing on a single port (SHUFFLE/PERM, BROADCAST) - Simplify data access and try to get stride 1 access. There are 20 issues (= instructions) costing 1 point each. | 20 |
| ○ | Number of ZMM SHUFFLE/PERM instructions: 3 Number of ZMM BROADCAST instructions: 17 | |
| ○ | [SA] More than 20% of the loads are accessing the stack - Perform loop splitting to decrease pressure on registers. This issue costs 2 points. | 2 |
| ►Vectorization Roadblocks | 17 | |
| ○ | [SA] Several paths (3 paths) - Simplify control structure or force the compiler to use masked instructions. There are 3 issues ( = paths) costing 1 point each. | 3 |
| ○ | [SA] Presence of constant non unit stride data access - Use array restructuring, perform loop interchange or use gather instructions to lower a bit the cost. There are 5 issues ( = data accesses) costing 2 point each. | 10 |
| ○ | [SA] Presence of indirect accesses - Use array restructuring or gather instructions to lower the cost. There are 1 issues ( = indirect data accesses) costing 4 point each. | 4 |
| ►Inefficient Vectorization | 22 | |
| ► | [SA] Presence of special instructions executing on a single port (SHUFFLE/PERM, BROADCAST) - Simplify data access and try to get stride 1 access. There are 20 issues (= instructions) costing 1 point each. | 20 |
| ○ | Number of ZMM SHUFFLE/PERM instructions: 3 Number of ZMM BROADCAST instructions: 17 | |
| ○ | [SA] Inefficient vectorization: use of masked instructions - Simplify control structure. The issue costs 2 points. | 2 |
| ►Loop 16663 - libgromacs_mpi.so.9.0.0 | Execution Time: 1 % - Vectorization Ratio: 41.30 % - Vector Length Use: 16.85 % | |
| ►Loop Computation Issues | 2 | |
| ○ | [SA] Presence of a large number of scalar integer instructions - Simplify loop structure, perform loop splitting or perform unroll and jam. This issue costs 2 points. | 2 |
| ►Control Flow Issues | 38 | |
| ○ | [SA] Too many paths (32 paths) - Simplify control structure. There are 32 issues ( = paths) costing 1 point each with a malus of 4 points. | 36 |
| ○ | [SA] Non innermost loop (InBetween) - Collapse loop with innermost ones. This issue costs 2 points. | 2 |
| ►Data Access Issues | 18 | |
| ► | [SA] Presence of expensive instructions (GATHER/SCATTER) - Use array restructuring. There are 2 issues (= instructions) costing 4 points each. | 8 |
| ○ | Number of XMM GATHER/SCATTER instructions: 1 Number of YMM GATHER/SCATTER instructions: 1 | |
| ► | [SA] Presence of special instructions executing on a single port (INSERT/EXTRACT, BLEND/MERGE, SHUFFLE/PERM, Other_packing) - Simplify data access and try to get stride 1 access. There are 10 issues (= instructions) costing 1 point each. | 10 |
| ○ | Number of INSERT/EXTRACT instructions: 1 Number of XMM BLEND/MERGE instructions: 2 Number of XMM SHUFFLE/PERM instructions: 4 Number of other YMM packing instructions: 3 | |
| ►Vectorization Roadblocks | 38 | |
| ○ | [SA] Too many paths (32 paths) - Simplify control structure. There are 32 issues ( = paths) costing 1 point each with a malus of 4 points. | 36 |
| ○ | [SA] Non innermost loop (InBetween) - Collapse loop with innermost ones. This issue costs 2 points. | 2 |
| ►Inefficient Vectorization | 18 | |
| ○ | [SA] Presence of expensive instructions (GATHER/SCATTER) - Use array restructuring. There are 2 issues (= instructions) costing 4 points each. | 8 |
| ► | [SA] Presence of special instructions executing on a single port (INSERT/EXTRACT, BLEND/MERGE, SHUFFLE/PERM, Other_packing) - Simplify data access and try to get stride 1 access. There are 10 issues (= instructions) costing 1 point each. | 10 |
| ○ | Number of INSERT/EXTRACT instructions: 1 Number of XMM BLEND/MERGE instructions: 2 Number of XMM SHUFFLE/PERM instructions: 4 Number of other YMM packing instructions: 3 | |
| ►Loop 19129 - libgromacs_mpi.so.9.0.0 | Execution Time: 1 % - Vectorization Ratio: 26.41 % - Vector Length Use: 9.94 % | |
| ►Loop Computation Issues | 4 | |
| ► | [SA] Presence of expensive FP instructions - Perform hoisting, change algorithm, use SVML or proper numerical library or perform value profiling (count the number of distinct input values). There are 1 issues (= instructions) costing 4 points each. | 4 |
| ○ | Number of DIV instructions: 1 | |
| ►Control Flow Issues | 2 | |
| ○ | [SA] Non innermost loop (InBetween) - Collapse loop with innermost ones. This issue costs 2 points. | 2 |
| ►Data Access Issues | 51 | |
| ► | [SA] Presence of special instructions executing on a single port (BLEND/MERGE, SHUFFLE/PERM, BROADCAST) - Simplify data access and try to get stride 1 access. There are 51 issues (= instructions) costing 1 point each. | 51 |
| ○ | Number of XMM BLEND/MERGE instructions: 38 Number of XMM SHUFFLE/PERM instructions: 6 Number of XMM BROADCAST instructions: 7 | |
| ►Vectorization Roadblocks | 1002 | |
| ○ | [SA] Too many paths (at least 1000 paths) - Simplify control structure. There are at least 1000 issues ( = paths) costing 1 point. | 1000 |
| ○ | [SA] Non innermost loop (InBetween) - Collapse loop with innermost ones. This issue costs 2 points. | 2 |
| ►Inefficient Vectorization | 51 | |
| ► | [SA] Presence of special instructions executing on a single port (BLEND/MERGE, SHUFFLE/PERM, BROADCAST) - Simplify data access and try to get stride 1 access. There are 51 issues (= instructions) costing 1 point each. | 51 |
| ○ | Number of XMM BLEND/MERGE instructions: 38 Number of XMM SHUFFLE/PERM instructions: 6 Number of XMM BROADCAST instructions: 7 |