In Grovers Example i am not able to distrubuted over multipal cpu , can you please add more details about QuESTEnv env = createQuESTEnv();

[ketan-more-github]

when i am running grovers serch example using mpi compiled am not able to run this with multipal cpu
if i want update code using mpi. QuESTEnv env = createQuESTEnv(); can you add more details about this env

[TysonRayJones]

Hi Ketan,

Could you share the mpirun command you're trying? As noted here, QuEST can only be distributed over a power-of-2 number of nodes (e.g. 2, 4, 16, 64, ...). Alas in v3 you're using, I think there is regrettably no error message when trying an invalid configuration - just a seg-fault, or something. We've addressed this in the imminent v4 which will have better doc.

Let me know if this solves it!

[ketan-more-github]

ok so basic tutorial .c example when i run i got multiple print statements so i can overcome them using set (env.rank==0) (Quest_mpi) ***@***.*** examples]$ mpiicx tutorial_example.c -o ketan -lQuEST -lm (Quest_mpi) ***@***.*** examples]$ export OMP_NUM_THREADS=16 (Quest_mpi) ***@***.*** examples]$ mpirun -np 8 ./ketan ------------------------------------------------------- Running QuEST tutorial: Basic circuit involving a system of 3 qubits. ------------------------------------------------------- ------------------------------------------------------- Running QuEST tutorial: Basic circuit involving a system of 3 qubits. ------------------------------------------------------- ------------------------------------------------------- Running QuEST tutorial: Basic circuit involving a system of 3 qubits. ------------------------------------------------------- ------------------------------------------------------- Running QuEST tutorial: Basic circuit involving a system of 3 qubits. ------------------------------------------------------- This is our environment: Circuit output: ------------------------------------------------------- Running QuEST tutorial: Basic circuit involving a system of 3 qubits. ------------------------------------------------------- ------------------------------------------------------- Running QuEST tutorial: Basic circuit involving a system of 3 qubits. ------------------------------------------------------- ------------------------------------------------------- Running QuEST tutorial: Basic circuit involving a system of 3 qubits. ------------------------------------------------------- This is our environment: ------------------------------------------------------- Running QuEST tutorial: Basic circuit involving a system of 3 qubits. ------------------------------------------------------- Circuit output: This is our environment: This is our environment: QUBITS: Number of qubits is 10. Number of amps is 1024. Number of amps per rank is 128. EXECUTION ENVIRONMENT: Running distributed (MPI) version Number of ranks is 8 OpenMP enabled Number of threads available is 16 Precision: size of qreal is 8 bytes Circuit output: Circuit output: This is our environment: This is our environment: This is our environment: This is our environment: Circuit output: Circuit output: Circuit output: Probability amplitude of |111>: 0.11242178332663 Circuit output: Probability amplitude of |111>: 0.11242178332663 Probability amplitude of |111>: 0.11242178332663 Probability amplitude of |111>: 0.11242178332663 Probability amplitude of |111>: 0.11242178332663 Probability amplitude of |111>: 0.11242178332663 Probability amplitude of |111>: 0.11242178332663 Probability amplitude of |111>: 0.11242178332663 Probability of qubit 2 being in state 1: 0.74917785178177 Probability of qubit 2 being in state 1: 0.74917785178177 Probability of qubit 2 being in state 1: 0.74917785178177 Probability of qubit 2 being in state 1: 0.74917785178177 Probability of qubit 2 being in state 1: 0.74917785178177 Probability of qubit 2 being in state 1: 0.74917785178177 Probability of qubit 2 being in state 1: 0.74917785178177 Probability of qubit 2 being in state 1: 0.74917785178177 Qubit 0 was measured in state 0 Qubit 0 was measured in state 0 Qubit 0 was measured in state 0 Qubit 0 was measured in state 0 Qubit 0 was measured in state 0 Qubit 0 was measured in state 0 Qubit 0 was measured in state 0 Qubit 0 was measured in state 0 Qubit 2 collapsed to 1 with probability 0.71771426119322 Qubit 2 collapsed to 1 with probability 0.71771426119322 Qubit 2 collapsed to 1 with probability 0.71771426119322 Qubit 2 collapsed to 1 with probability 0.71771426119322 Qubit 2 collapsed to 1 with probability 0.71771426119322 Qubit 2 collapsed to 1 with probability 0.71771426119322 Qubit 2 collapsed to 1 with probability 0.71771426119322 Qubit 2 collapsed to 1 with probability 0.71771426119322 now talk about grovers example mpiicx grovers_search.c -o ketan -lQuEST -lm (Quest_mpi) ***@***.*** examples]$ export OMP_NUM_THREADS=16 (Quest_mpi) ***@***.*** examples]$ mpirun -np 8 ./ketan numQubits: 3, numElems: 8, numReps: 3 numQubits: 3, numElems: 8, numReps: 3 numQubits: 3, numElems: 8, numReps: 3 numQubits: 3, numElems: 8, numReps: 3 numQubits: 3, numElems: 8, numReps: 3 numQubits: 3, numElems: 8, numReps: 3 numQubits: 3, numElems: 8, numReps: 3 numQubits: 3, numElems: 8, numReps: 3 prob of solution |3> = 0.78125000000000 prob of solution |3> = 0.78125000000000 prob of solution |3> = 0.78125000000000 prob of solution |3> = 0.78125000000000 prob of solution |3> = 0.78125000000000 prob of solution |3> = 0.78125000000000 prob of solution |3> = 0.78125000000000 prob of solution |3> = 0.78125000000000 prob of solution |3> = 0.94531250000000 prob of solution |3> = 0.94531250000000 prob of solution |3> = 0.94531250000000 prob of solution |3> = 0.94531250000000 prob of solution |3> = 0.94531250000000 prob of solution |3> = 0.94531250000000 prob of solution |3> = 0.94531250000000 prob of solution |3> = 0.94531250000000 prob of solution |3> = 0.33007812500000 prob of solution |3> = 0.33007812500000 prob of solution |3> = 0.33007812500000 prob of solution |3> = 0.33007812500000 prob of solution |3> = 0.33007812500000 prob of solution |3> = 0.33007812500000 prob of solution |3> = 0.33007812500000 prob of solution |3> = 0.33007812500000 this one is not distrubuted Ketan More Software Engineer and Developer [image: email] ***@***.*** [image: mobile] 9834930302 [image: address] Pune Maharashtra [image: website] https://flowcv.me/ketanmore-137 [image: linkedIn] <https://www.linkedin.com/in/ketan-more-6a36a41b3/> [image: github] <https://github.com/ketan-more-github> [image: facebook] <https://www.facebook.com/ketan.more.3910> [image: instagram] <https://www.instagram.com/ketuzz.137/> Create your own free signature here <https://flowcv.com/?ref=email-signature>

…

On Thu, 6 Mar 2025 at 18:40, Tyson Jones ***@***.***> wrote: Hi Ketan, Could you share the mpirun command you're trying? As noted here <https://github.com/QuEST-Kit/QuEST/tree/master/examples#running>, QuEST can only be *distributed* over a power-of-2 number of nodes (e.g. 2, 4, 16, 64, ...). Alas in v3 you're using, I think there is regrettably no error message when trying an invalid configuration - just a seg-fault, or something. We've addressed this in the imminent v4 which will have better doc. Let me know if this solves it! — Reply to this email directly, view it on GitHub <#556 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AXZ3MB3CLE2Q3IA24JUAHGL2TBCNLAVCNFSM6AAAAABYN5CA2WVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTENBRGQYDINA> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[ketan-more-github]

what i am thinking for (int r=0; r<numReps; r++) { applyOracle(qureg, numQubits, solElem); applyDiffuser(qureg, numQubits); // monitor the probability of the solution state printf("prob of solution |%d> = " REAL_STRING_FORMAT "\n", solElem, getProbAmp(qureg, solElem)); } i have this loop so this 2 function apply oracle and apply diffuser should be run on different cpu distributed num of cpu == num of reps and thn each cpu return back probability is this working internally?? Ketan More Software Engineer and Developer [image: email] ***@***.*** [image: mobile] 9834930302 [image: address] Pune Maharashtra [image: website] https://flowcv.me/ketanmore-137 [image: linkedIn] <https://www.linkedin.com/in/ketan-more-6a36a41b3/> [image: github] <https://github.com/ketan-more-github> [image: facebook] <https://www.facebook.com/ketan.more.3910> [image: instagram] <https://www.instagram.com/ketuzz.137/> Create your own free signature here <https://flowcv.com/?ref=email-signature>

…

On Fri, 7 Mar 2025 at 10:55, Ketan More ***@***.***> wrote: ok so basic tutorial .c example when i run i got multiple print statements so i can overcome them using set (env.rank==0) (Quest_mpi) ***@***.*** examples]$ mpiicx tutorial_example.c -o ketan -lQuEST -lm (Quest_mpi) ***@***.*** examples]$ export OMP_NUM_THREADS=16 (Quest_mpi) ***@***.*** examples]$ mpirun -np 8 ./ketan ------------------------------------------------------- Running QuEST tutorial: Basic circuit involving a system of 3 qubits. ------------------------------------------------------- ------------------------------------------------------- Running QuEST tutorial: Basic circuit involving a system of 3 qubits. ------------------------------------------------------- ------------------------------------------------------- Running QuEST tutorial: Basic circuit involving a system of 3 qubits. ------------------------------------------------------- ------------------------------------------------------- Running QuEST tutorial: Basic circuit involving a system of 3 qubits. ------------------------------------------------------- This is our environment: Circuit output: ------------------------------------------------------- Running QuEST tutorial: Basic circuit involving a system of 3 qubits. ------------------------------------------------------- ------------------------------------------------------- Running QuEST tutorial: Basic circuit involving a system of 3 qubits. ------------------------------------------------------- ------------------------------------------------------- Running QuEST tutorial: Basic circuit involving a system of 3 qubits. ------------------------------------------------------- This is our environment: ------------------------------------------------------- Running QuEST tutorial: Basic circuit involving a system of 3 qubits. ------------------------------------------------------- Circuit output: This is our environment: This is our environment: QUBITS: Number of qubits is 10. Number of amps is 1024. Number of amps per rank is 128. EXECUTION ENVIRONMENT: Running distributed (MPI) version Number of ranks is 8 OpenMP enabled Number of threads available is 16 Precision: size of qreal is 8 bytes Circuit output: Circuit output: This is our environment: This is our environment: This is our environment: This is our environment: Circuit output: Circuit output: Circuit output: Probability amplitude of |111>: 0.11242178332663 Circuit output: Probability amplitude of |111>: 0.11242178332663 Probability amplitude of |111>: 0.11242178332663 Probability amplitude of |111>: 0.11242178332663 Probability amplitude of |111>: 0.11242178332663 Probability amplitude of |111>: 0.11242178332663 Probability amplitude of |111>: 0.11242178332663 Probability amplitude of |111>: 0.11242178332663 Probability of qubit 2 being in state 1: 0.74917785178177 Probability of qubit 2 being in state 1: 0.74917785178177 Probability of qubit 2 being in state 1: 0.74917785178177 Probability of qubit 2 being in state 1: 0.74917785178177 Probability of qubit 2 being in state 1: 0.74917785178177 Probability of qubit 2 being in state 1: 0.74917785178177 Probability of qubit 2 being in state 1: 0.74917785178177 Probability of qubit 2 being in state 1: 0.74917785178177 Qubit 0 was measured in state 0 Qubit 0 was measured in state 0 Qubit 0 was measured in state 0 Qubit 0 was measured in state 0 Qubit 0 was measured in state 0 Qubit 0 was measured in state 0 Qubit 0 was measured in state 0 Qubit 0 was measured in state 0 Qubit 2 collapsed to 1 with probability 0.71771426119322 Qubit 2 collapsed to 1 with probability 0.71771426119322 Qubit 2 collapsed to 1 with probability 0.71771426119322 Qubit 2 collapsed to 1 with probability 0.71771426119322 Qubit 2 collapsed to 1 with probability 0.71771426119322 Qubit 2 collapsed to 1 with probability 0.71771426119322 Qubit 2 collapsed to 1 with probability 0.71771426119322 Qubit 2 collapsed to 1 with probability 0.71771426119322 now talk about grovers example mpiicx grovers_search.c -o ketan -lQuEST -lm (Quest_mpi) ***@***.*** examples]$ export OMP_NUM_THREADS=16 (Quest_mpi) ***@***.*** examples]$ mpirun -np 8 ./ketan numQubits: 3, numElems: 8, numReps: 3 numQubits: 3, numElems: 8, numReps: 3 numQubits: 3, numElems: 8, numReps: 3 numQubits: 3, numElems: 8, numReps: 3 numQubits: 3, numElems: 8, numReps: 3 numQubits: 3, numElems: 8, numReps: 3 numQubits: 3, numElems: 8, numReps: 3 numQubits: 3, numElems: 8, numReps: 3 prob of solution |3> = 0.78125000000000 prob of solution |3> = 0.78125000000000 prob of solution |3> = 0.78125000000000 prob of solution |3> = 0.78125000000000 prob of solution |3> = 0.78125000000000 prob of solution |3> = 0.78125000000000 prob of solution |3> = 0.78125000000000 prob of solution |3> = 0.78125000000000 prob of solution |3> = 0.94531250000000 prob of solution |3> = 0.94531250000000 prob of solution |3> = 0.94531250000000 prob of solution |3> = 0.94531250000000 prob of solution |3> = 0.94531250000000 prob of solution |3> = 0.94531250000000 prob of solution |3> = 0.94531250000000 prob of solution |3> = 0.94531250000000 prob of solution |3> = 0.33007812500000 prob of solution |3> = 0.33007812500000 prob of solution |3> = 0.33007812500000 prob of solution |3> = 0.33007812500000 prob of solution |3> = 0.33007812500000 prob of solution |3> = 0.33007812500000 prob of solution |3> = 0.33007812500000 prob of solution |3> = 0.33007812500000 this one is not distrubuted Ketan More Software Engineer and Developer [image: email] ***@***.*** [image: mobile] 9834930302 [image: address] Pune Maharashtra [image: website] https://flowcv.me/ketanmore-137 [image: linkedIn] <https://www.linkedin.com/in/ketan-more-6a36a41b3/> [image: github] <https://github.com/ketan-more-github> [image: facebook] <https://www.facebook.com/ketan.more.3910> [image: instagram] <https://www.instagram.com/ketuzz.137/> Create your own free signature here <https://flowcv.com/?ref=email-signature> On Thu, 6 Mar 2025 at 18:40, Tyson Jones ***@***.***> wrote: > Hi Ketan, > > Could you share the mpirun command you're trying? As noted here > <https://github.com/QuEST-Kit/QuEST/tree/master/examples#running>, QuEST > can only be *distributed* over a power-of-2 number of nodes (e.g. 2, 4, > 16, 64, ...). Alas in v3 you're using, I think there is regrettably no > error message when trying an invalid configuration - just a seg-fault, or > something. We've addressed this in the imminent v4 which will have better > doc. > > Let me know if this solves it! > > — > Reply to this email directly, view it on GitHub > <#556 (comment)>, > or unsubscribe > <https://github.com/notifications/unsubscribe-auth/AXZ3MB3CLE2Q3IA24JUAHGL2TBCNLAVCNFSM6AAAAABYN5CA2WVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTENBRGQYDINA> > . > You are receiving this because you authored the thread.Message ID: > ***@***.***> >

[TysonRayJones]

Hmm alas I'm not following - but thankfully the issue might be moot with the recently released v4. You can now use functions like reportStr and reportScalar to avoid duplicated output in distributed settings.