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gmx_mpi - 2024-08-02 14:11:00 - MAQAO 2.20.7

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Optimizer

Loop IDAnalysisPenalty Score
Loop 839 - libgromacs_mpi.so.9.0.0+Execution Time: 18 % - Vectorization Ratio: 89.12 % - Vector Length Use: 82.65 %
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+49
[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 3 issues ( = data accesses) costing 2 point each.6
[SA] Presence of indirect accesses - Use array restructuring or gather instructions to lower the cost. There are 4 issues ( = indirect data accesses) costing 4 point each.16
+[SA] Presence of special instructions executing on a single port (INSERT/EXTRACT, BROADCAST) - Simplify data access and try to get stride 1 access. There are 25 issues (= instructions) costing 1 point each.25
Number of INSERT/EXTRACT instructions: 3
Number of ZMM BROADCAST instructions: 22
[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+22
[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 3 issues ( = data accesses) costing 2 point each.6
[SA] Presence of indirect accesses - Use array restructuring or gather instructions to lower the cost. There are 4 issues ( = indirect data accesses) costing 4 point each.16
Inefficient Vectorization+27
+[SA] Presence of special instructions executing on a single port (INSERT/EXTRACT, BROADCAST) - Simplify data access and try to get stride 1 access. There are 25 issues (= instructions) costing 1 point each.25
Number of INSERT/EXTRACT instructions: 3
Number of ZMM BROADCAST instructions: 22
[SA] Inefficient vectorization: use of masked instructions - Simplify control structure. The issue costs 2 points.2
Loop 837 - libgromacs_mpi.so.9.0.0+Execution Time: 6 % - Vectorization Ratio: 88.34 % - Vector Length Use: 82.68 %
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+49
[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 3 issues ( = data accesses) costing 2 point each.6
[SA] Presence of indirect accesses - Use array restructuring or gather instructions to lower the cost. There are 4 issues ( = indirect data accesses) costing 4 point each.16
+[SA] Presence of special instructions executing on a single port (INSERT/EXTRACT, BROADCAST) - Simplify data access and try to get stride 1 access. There are 25 issues (= instructions) costing 1 point each.25
Number of INSERT/EXTRACT instructions: 3
Number of ZMM BROADCAST instructions: 22
[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+22
[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 3 issues ( = data accesses) costing 2 point each.6
[SA] Presence of indirect accesses - Use array restructuring or gather instructions to lower the cost. There are 4 issues ( = indirect data accesses) costing 4 point each.16
Inefficient Vectorization+27
+[SA] Presence of special instructions executing on a single port (INSERT/EXTRACT, BROADCAST) - Simplify data access and try to get stride 1 access. There are 25 issues (= instructions) costing 1 point each.25
Number of INSERT/EXTRACT instructions: 3
Number of ZMM BROADCAST instructions: 22
[SA] Inefficient vectorization: use of masked instructions - Simplify control structure. The issue costs 2 points.2
Loop 846 - libgromacs_mpi.so.9.0.0+Execution Time: 3 % - Vectorization Ratio: 87.82 % - Vector Length Use: 84.20 %
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+53
[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 6 issues ( = data accesses) costing 2 point each.12
[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 (INSERT/EXTRACT, BROADCAST) - Simplify data access and try to get stride 1 access. There are 35 issues (= instructions) costing 1 point each.35
Number of INSERT/EXTRACT instructions: 3
Number of ZMM BROADCAST instructions: 32
[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+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 6 issues ( = data accesses) costing 2 point each.12
[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+37
+[SA] Presence of special instructions executing on a single port (INSERT/EXTRACT, BROADCAST) - Simplify data access and try to get stride 1 access. There are 35 issues (= instructions) costing 1 point each.35
Number of INSERT/EXTRACT instructions: 3
Number of ZMM BROADCAST instructions: 32
[SA] Inefficient vectorization: use of masked instructions - Simplify control structure. The issue costs 2 points.2
Loop 17265 - libgromacs_mpi.so.9.0.0+Execution Time: 1 % - Vectorization Ratio: 65.71 % - Vector Length Use: 37.54 %
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+36
[SA] Too many paths (30 paths) - Simplify control structure. There are 30 issues ( = paths) costing 1 point each with a malus of 4 points.34
[SA] Non innermost loop (Outermost) - Collapse loop with innermost ones. This issue costs 2 points.2
Data Access Issues+56
+[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 (INSERT/EXTRACT, COMPRESS/EXPAND, SHUFFLE/PERM, BROADCAST) - Simplify data access and try to get stride 1 access. There are 38 issues (= instructions) costing 1 point each.38
Number of INSERT/EXTRACT instructions: 10
Number of ZMM COMPRESS/EXPAND instructions: 2
Number of XMM SHUFFLE/PERM instructions: 6
Number of ZMM SHUFFLE/PERM instructions: 5
Number of XMM BROADCAST instructions: 8
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+36
[SA] Too many paths (30 paths) - Simplify control structure. There are 30 issues ( = paths) costing 1 point each with a malus of 4 points.34
[SA] Non innermost loop (Outermost) - Collapse loop with innermost ones. This issue costs 2 points.2
Inefficient Vectorization+56
[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 (INSERT/EXTRACT, COMPRESS/EXPAND, SHUFFLE/PERM, BROADCAST) - Simplify data access and try to get stride 1 access. There are 38 issues (= instructions) costing 1 point each.38
Number of INSERT/EXTRACT instructions: 10
Number of ZMM COMPRESS/EXPAND instructions: 2
Number of XMM SHUFFLE/PERM instructions: 6
Number of ZMM SHUFFLE/PERM instructions: 5
Number of XMM BROADCAST instructions: 8
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 713 - libgromacs_mpi.so.9.0.0+Execution Time: 1 % - Vectorization Ratio: 89.26 % - Vector Length Use: 82.89 %
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+49
[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 3 issues ( = data accesses) costing 2 point each.6
[SA] Presence of indirect accesses - Use array restructuring or gather instructions to lower the cost. There are 4 issues ( = indirect data accesses) costing 4 point each.16
+[SA] Presence of special instructions executing on a single port (INSERT/EXTRACT, BROADCAST) - Simplify data access and try to get stride 1 access. There are 25 issues (= instructions) costing 1 point each.25
Number of INSERT/EXTRACT instructions: 3
Number of ZMM BROADCAST instructions: 22
[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+22
[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 3 issues ( = data accesses) costing 2 point each.6
[SA] Presence of indirect accesses - Use array restructuring or gather instructions to lower the cost. There are 4 issues ( = indirect data accesses) costing 4 point each.16
Inefficient Vectorization+27
+[SA] Presence of special instructions executing on a single port (INSERT/EXTRACT, BROADCAST) - Simplify data access and try to get stride 1 access. There are 25 issues (= instructions) costing 1 point each.25
Number of INSERT/EXTRACT instructions: 3
Number of ZMM BROADCAST instructions: 22
[SA] Inefficient vectorization: use of masked instructions - Simplify control structure. The issue costs 2 points.2
Loop 844 - libgromacs_mpi.so.9.0.0+Execution Time: 1 % - Vectorization Ratio: 88.67 % - Vector Length Use: 85.30 %
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+59
[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 (INSERT/EXTRACT, BROADCAST) - Simplify data access and try to get stride 1 access. There are 37 issues (= instructions) costing 1 point each.37
Number of INSERT/EXTRACT instructions: 3
Number of ZMM BROADCAST instructions: 34
[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+39
+[SA] Presence of special instructions executing on a single port (INSERT/EXTRACT, BROADCAST) - Simplify data access and try to get stride 1 access. There are 37 issues (= instructions) costing 1 point each.37
Number of INSERT/EXTRACT instructions: 3
Number of ZMM BROADCAST instructions: 34
[SA] Inefficient vectorization: use of masked instructions - Simplify control structure. The issue costs 2 points.2
Loop 17547 - libgromacs_mpi.so.9.0.0+Execution Time: 0 % - Vectorization Ratio: 80.17 % - Vector Length Use: 21.69 %
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+105
[SA] Too many paths (99 paths) - Simplify control structure. There are 99 issues ( = paths) costing 1 point each with a malus of 4 points.103
[SA] Non innermost loop (InBetween) - Collapse loop with innermost ones. This issue costs 2 points.2
Data Access Issues+22
+[SA] Presence of special instructions executing on a single port (INSERT/EXTRACT, BROADCAST) - Simplify data access and try to get stride 1 access. There are 20 issues (= instructions) costing 1 point each.20
Number of INSERT/EXTRACT instructions: 2
Number of XMM 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+105
[SA] Too many paths (99 paths) - Simplify control structure. There are 99 issues ( = paths) costing 1 point each with a malus of 4 points.103
[SA] Non innermost loop (InBetween) - Collapse loop with innermost ones. This issue costs 2 points.2
Inefficient Vectorization+22
+[SA] Presence of special instructions executing on a single port (INSERT/EXTRACT, BROADCAST) - Simplify data access and try to get stride 1 access. There are 20 issues (= instructions) costing 1 point each.20
Number of INSERT/EXTRACT instructions: 2
Number of XMM BROADCAST instructions: 18
[SA] Inefficient vectorization: use of masked instructions - Simplify control structure. The issue costs 2 points.2
Loop 834 - libgromacs_mpi.so.9.0.0+Execution Time: 0 % - Vectorization Ratio: 68.67 % - Vector Length Use: 41.67 %
Loop Computation Issues+6
[SA] Less than 10% of the FP ADD/SUB/MUL arithmetic operations are performed using FMA - Reorganize arithmetic expressions to exhibit potential for FMA. This issue costs 4 points.4
[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+44
[SA] Too many paths (38 paths) - Simplify control structure. There are 38 issues ( = paths) costing 1 point each with a malus of 4 points.42
[SA] Non innermost loop (Outermost) - Collapse loop with innermost ones. This issue costs 2 points.2
Data Access Issues+62
+[SA] Presence of special instructions executing on a single port (INSERT/EXTRACT, COMPRESS/EXPAND, BLEND/MERGE, SHUFFLE/PERM, BROADCAST) - Simplify data access and try to get stride 1 access. There are 60 issues (= instructions) costing 1 point each.60
Number of INSERT/EXTRACT instructions: 12
Number of ZMM COMPRESS/EXPAND instructions: 3
Number of XMM BLEND/MERGE instructions: 1
Number of XMM SHUFFLE/PERM instructions: 4
Number of ZMM SHUFFLE/PERM instructions: 12
Number of XMM BROADCAST instructions: 1
Number of YMM BROADCAST instructions: 24
Number of ZMM BROADCAST instructions: 3
[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+44
[SA] Too many paths (38 paths) - Simplify control structure. There are 38 issues ( = paths) costing 1 point each with a malus of 4 points.42
[SA] Non innermost loop (Outermost) - Collapse loop with innermost ones. This issue costs 2 points.2
Inefficient Vectorization+62
+[SA] Presence of special instructions executing on a single port (INSERT/EXTRACT, COMPRESS/EXPAND, BLEND/MERGE, SHUFFLE/PERM, BROADCAST) - Simplify data access and try to get stride 1 access. There are 60 issues (= instructions) costing 1 point each.60
Number of INSERT/EXTRACT instructions: 12
Number of ZMM COMPRESS/EXPAND instructions: 3
Number of XMM BLEND/MERGE instructions: 1
Number of XMM SHUFFLE/PERM instructions: 4
Number of ZMM SHUFFLE/PERM instructions: 12
Number of XMM BROADCAST instructions: 1
Number of YMM BROADCAST instructions: 24
Number of ZMM BROADCAST instructions: 3
[SA] Inefficient vectorization: use of masked instructions - Simplify control structure. The issue costs 2 points.2
Loop 840 - libgromacs_mpi.so.9.0.0+Execution Time: 0 % - Vectorization Ratio: 87.00 % - Vector Length Use: 81.10 %
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+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 6 issues ( = data accesses) costing 2 point each.12
[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 (INSERT/EXTRACT, BLEND/MERGE, BROADCAST) - Simplify data access and try to get stride 1 access. There are 27 issues (= instructions) costing 1 point each.27
Number of INSERT/EXTRACT instructions: 3
Number of ZMM BLEND/MERGE instructions: 1
Number of ZMM BROADCAST instructions: 23
[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+19
[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 6 issues ( = data accesses) costing 2 point each.12
[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+29
+[SA] Presence of special instructions executing on a single port (INSERT/EXTRACT, BLEND/MERGE, BROADCAST) - Simplify data access and try to get stride 1 access. There are 27 issues (= instructions) costing 1 point each.27
Number of INSERT/EXTRACT instructions: 3
Number of ZMM BLEND/MERGE instructions: 1
Number of ZMM BROADCAST instructions: 23
[SA] Inefficient vectorization: use of masked instructions - Simplify control structure. The issue costs 2 points.2
Loop 1323 - libgromacs_mpi.so.9.0.0+Execution Time: 0 % - Vectorization Ratio: 0.00 % - Vector Length Use: 6.25 %
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
Data Access Issues+10
[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 3 issues ( = data accesses) costing 2 point each.6
[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
Vectorization Roadblocks+10
[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 3 issues ( = data accesses) costing 2 point each.6
[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
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